{"id":1803,"date":"2021-07-23T11:25:45","date_gmt":"2021-07-23T05:55:45","guid":{"rendered":"http:\/\/ncertsolutions.guru\/?p=1803"},"modified":"2021-11-01T11:57:28","modified_gmt":"2021-11-01T06:27:28","slug":"ncert-solutions-for-class-9-science-chapter-11-hindi","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-9-science-chapter-11-hindi\/","title":{"rendered":"NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium)"},"content":{"rendered":"

NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium)<\/span><\/h2>\n

These Solutions are part of NCERT Solutions for Class 9 Science in Hindi Medium<\/a>. Here we have given NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy.<\/p>\n

\u092a\u093e\u0920\u0917\u0924 \u0939\u0932 \u092a\u094d\u0930\u0936\u094d\u0928 (NCERT IN-TEXT QUESTIONS SOLVED)<\/strong><\/span><\/p>\n

NCERT \u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 (\u092a\u0943\u0937\u094d\u0920 \u0938\u0902\u0916\u094d\u092f\u093e-164)<\/strong><\/p>\n

\u092a\u094d\u0930\u0966 1. \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 7N \u0915\u093e \u092c\u0932 \u0932\u0917\u0924\u093e \u0939\u0948\u0964 \u092e\u093e\u0928 \u0932\u0940\u091c\u093f\u090f \u092c\u0932<\/strong>
\n\u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 8m \u0939\u0948 (\u0938\u0902\u0932\u0917\u094d\u0928 \u091a\u093f\u0924\u094d\u0930 \u0926\u0947\u0916\u093f\u090f)\u0964 \u092e\u093e\u0928 \u0932\u0940\u091c\u093f\u090f \u0935\u0938\u094d\u0924\u0941 \u0915\u0947 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0947 \u0938\u092e\u092f \u0932\u0917\u093e\u0924\u093e\u0930 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u092c\u0932 \u0932\u0917\u0924\u093e \u0930\u0939\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u0924\u0928\u093e \u0939\u094b\u0917\u093e?<\/strong>
\n\"NCERT<\/p>\n

NCERT \u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 (\u092a\u0943\u0937\u094d\u0920 \u0938\u0902\u0916\u094d\u092f\u093e-165)<\/strong><\/p>\n

\u092a\u094d\u0930\u0966 1. \u0939\u092e \u0915\u092c \u0915\u0939\u0924\u0947 \u0939\u0948\u0902 \u0915\u093f \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0935\u093f\u091c\u094d\u091e\u093e\u0928 \u0915\u0947 \u0926\u0943\u0937\u094d\u091f\u093f\u0915\u094b\u0923 \u0938\u0947 \u0939\u092e \u0924\u092c \u0915\u0939\u0924\u0947 \u0939\u0948\u0902 \u0915\u093f \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u091c\u092c \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u092c\u0932 \u0932\u0917\u093e\u0928\u0947 \u092a\u0930 \u0909\u0938\u092e\u0947\u0902 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0939\u094b \u091c\u093e\u090f\u0964<\/p>\n

\u092a\u094d\u0930\u0966 2. \u091c\u092c \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u0932\u0917\u0928\u0947 \u0935\u093e\u0932\u093e \u092c\u0932 \u0907\u0938\u0915\u0947 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0939\u094b \u0924\u094b \u0915\u093f\u090f \u0917\u090f \u0915\u093e\u0930\u094d\u092f \u0915\u093e \u0935\u094d\u092f\u0902\u091c\u0915 \u0932\u093f\u0916\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 F \u092c\u0932 \u0932\u0917\u0947 \u0914\u0930 \u0909\u0938\u092e\u0947\u0902 \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 s \u0939\u094b\u0964
\n\u0924\u092c \u0915\u093e\u0930\u094d\u092f W = \u092c\u0932 x \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928\u0964
\nW = F x s<\/p>\n

Work and Energy Class 9 Questions and Answers<\/a>\u00a0will help you score more marks.<\/p>\n

\u092a\u094d\u0930\u0966 3. 1 J \u0915\u093e\u0930\u094d\u092f \u0915\u094b \u092a\u0930\u093f\u092d\u093e\u0937\u093f\u0924 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> 1 J \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u0915\u093f\u090f \u0917\u090f \u0915\u093e\u0930\u094d\u092f \u0915\u0940 \u0935\u0939 \u092e\u093e\u0924\u094d\u0930\u093e \u0939\u0948\u0964
\n\u091c\u092c 1 N \u0915\u093e \u092c\u0932 \u0935\u0938\u094d\u0924\u0941 \u0915\u094b \u092c\u0932 \u0915\u0940 \u0915\u094d\u0930\u093f\u092f\u093e \u0930\u0947\u0916\u093e \u0915\u0940
\n\u0926\u093f\u0936\u093e \u092e\u0947\u0902 1m \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u0930 \u0926\u0947\u0964<\/p>\n

\u092a\u094d\u0930\u0966 4. \u092c\u0948\u0932\u094b\u0902 \u0915\u0940 \u090f\u0915 \u091c\u094b\u0921\u093c\u0940 \u0916\u0947\u0924 \u091c\u094b\u0924\u0924\u0947 \u0938\u092e\u092f \u0915\u093f\u0938\u0940 \u0939\u0932 \u092a\u0930 140 N \u092c\u0932 \u0932\u0917\u093e\u0924\u0940 \u0939\u0948\u0964 \u091c\u094b\u0924\u093e \u0917\u092f\u093e \u0916\u0947\u0924 15 m \u0932\u0902\u092c\u093e \u0939\u0948\u0964 \u0916\u0947\u0924 \u0915\u0940 \u0932\u0902\u092c\u093e\u0908 \u0915\u094b \u091c\u094b\u0924\u0928\u0947 \u092e\u0947\u0902 \u0915\u093f\u0924\u0928\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u092f\u093e \u0917\u092f\u093e?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n\u0926\u093f\u092f\u093e \u0939\u0948 : \u092c\u0932 F = 140 N
\n\u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 s = 15 m
\n\u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f = \u092c\u0932 x \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928
\nW = F x s
\nW = 140 N x 15 m = 2100 Nm = 2100 J
\n\u0905\u0924\u0903 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f = 2100J<\/p>\n

NCERT \u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 (\u092a\u0943\u0937\u094d\u0920 \u0938\u0902\u0916\u094d\u092f\u093e-169)<\/strong><\/p>\n

\u092a\u094d\u0930\u0966 1. \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u094d\u092f\u093e \u0939\u094b\u0924\u0940 \u0939\u0948?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092e\u0947\u0902 \u0909\u0938\u0915\u0940 \u0917\u0924\u093f \u0915\u0947 \u0915\u093e\u0930\u0923 \u0928\u093f\u0939\u093f\u0924 \u090a\u0930\u094d\u091c\u093e \u0915\u094b \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964
\n\u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e (Ek)= \\(\\frac { 1 }{ 2 }\\) mv\u00b2
\n\u091c\u0939\u093e\u0901, m = \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928
\nv = \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0935\u0947\u0917<\/p>\n

\u092a\u094d\u0930\u0966 2. \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u0932\u093f\u090f \u0935\u094d\u092f\u0902\u091c\u0915 \u0932\u093f\u0916\u094b\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e = \\(\\frac { 1 }{ 2 }\\) mv\u00b2
\n\u091c\u0939\u093e\u0901 \u092a\u0930, m = \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928
\nv = \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0935\u0947\u0917<\/p>\n

\u092a\u094d\u0930\u0966 3. 5 ms-1 \u0915\u0947 \u0935\u0947\u0917 \u0938\u0947 \u0917\u0924\u093f\u0936\u0940\u0932 \u0915\u093f\u0938\u0940 m \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u0940 \u0935\u0938\u094d\u0924\u0941 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e 25 J \u0939\u0948\u0964 \u092f\u0926\u093f \u0907\u0938\u0915\u0947 \u0935\u0947\u0917 \u0915\u094b \u0926\u094b\u0917\u0941\u0928\u093e \u0915\u0930 \u0926\u093f\u092f\u093e \u091c\u093e\u090f \u0924\u094b \u0907\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u093f\u0924\u0928\u0940 \u0939\u094b \u091c\u093e\u090f\u0917\u0940? \u092f\u0926\u093f \u0907\u0938\u0915\u0947 \u0935\u0947\u0917 \u0915\u094b \u0924\u0940\u0928 \u0917\u0941\u0928\u093e \u092c\u0922\u093c\u093e \u0926\u093f\u092f\u093e \u091c\u093e\u090f \u0924\u094b \u0907\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u093f\u0924\u0928\u0940 \u0939\u094b \u091c\u093e\u090f\u0917\u0940?<\/strong>
\n\"NCERT
\n\"NCERT<\/p>\n

NCERT \u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 (\u092a\u0943\u0937\u094d\u0920 \u0938\u0902\u0916\u094d\u092f\u093e 174)<\/strong><\/p>\n

\u092a\u094d\u0930\u0966 1. \u0936\u0915\u094d\u0924\u093f \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0928\u0947 \u0915\u0940 \u0926\u0930 \u092f\u093e \u090a\u0930\u094d\u091c\u093e \u0930\u0942\u092a\u093e\u0902\u0924\u0930\u0923 \u0915\u0940 \u0926\u0930 \u0915\u094b \u0936\u0915\u094d\u0924\u093f \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 2. 1 \u0935\u093e\u091f \u0936\u0915\u094d\u0924\u093f \u0915\u094b \u092a\u0930\u093f\u092d\u093e\u0937\u093f\u0924 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> 1 \u0935\u093e\u091f \u0909\u0938 \u0905\u092d\u093f\u0915\u0930\u094d\u0924\u093e (\u090f\u091c\u0947\u0902\u091f) \u0915\u0940 \u0936\u0915\u094d\u0924\u093f \u0939\u0948 \u091c\u094b 1 \u0938\u0947\u0915\u0902\u0921 \u092e\u0947\u0902 1 \u091c\u0942\u0932 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948\u0964
\n\u0926\u0942\u0938\u0930\u0947 \u0936\u092c\u094d\u0926\u094b\u0902 \u092e\u0947\u0902, \u092f\u0926\u093f \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u0909\u092a\u092f\u094b\u0917 \u0915\u0940 \u0926\u0930 1 Js-1<\/sup> \u0939\u094b \u0924\u094b \u0936\u0915\u094d\u0924\u093f 1 W \u0939\u094b\u0917\u0940\u0964
\n\"NCERT
\n\u092f\u093e 1 w = 1 Js-1<\/p>\n

\u092a\u094d\u0930\u0966 3. \u090f\u0915 \u0932\u0948\u0902\u092a 1000 J \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u090a\u0930\u094d\u091c\u093e 10 \u092e\u0947\u0902 \u0935\u094d\u092f\u092f \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u0940 \u0936\u0915\u094d\u0924\u093f \u0915\u093f\u0924\u0928\u0940 \u0939\u0948?<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 4. \u0914\u0938\u0924 \u0936\u0915\u094d\u0924\u093f \u0915\u094b \u092a\u0930\u093f\u092d\u093e\u0937\u093f\u0924 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0914\u0938\u0924 \u0936\u0915\u094d\u0924\u093f \u0915\u094b \u0939\u092e \u0915\u0941\u0932 \u0909\u092a\u092f\u094b\u0917 \u0915\u0940 \u0917\u0908 \u090a\u0930\u094d\u091c\u093e \u0915\u094b, \u0915\u0941\u0932 \u0932\u093f\u090f \u0917\u090f \u0938\u092e\u092f \u0938\u0947 \u0935\u093f\u092d\u093e\u091c\u093f\u0924 \u0915\u0930 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0915\u0930 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964
\n\"NCERT
\n\u0928\u094b\u091f\u0903<\/strong> [\u0914\u0938\u0924 \u0936\u0915\u094d\u0924\u093f \u092a\u0926 \u0924\u092c \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902 \u091c\u092c \u0915\u093f\u0938\u0940 \u0905\u092d\u093f\u0915\u0930\u094d\u0924\u093e \u092f\u093e \u090f\u091c\u0947\u0902\u091f (\u091c\u0948\u0938\u0947 \u0915\u094b\u0908 \u0938\u0902\u092f\u0902\u0924\u094d\u0930) \u0915\u0940 \u0936\u0915\u094d\u0924\u093f \u0938\u092e\u092f \u0915\u0947 \u0938\u093e\u0925 \u092c\u0926\u0932\u0924\u0940 \u0939\u0948\u0964 \u0905\u0930\u094d\u0925\u093e\u0924\u094d \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u0938\u092e\u092f \u0905\u0902\u0924\u0930\u093e\u0932\u094b\u0902 \u092e\u0947\u0902 \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u0926\u0930\u094b\u0902 \u0938\u0947 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948\u0964]<\/p>\n

\u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 \u0938\u0947 \u0939\u0932 \u092a\u094d\u0930\u0936\u094d\u0928 (NCERT TEXTBOOK QUESTIONS SOLVED)<\/strong><\/span><\/p>\n

\u092a\u094d\u0930\u0966 1. \u0928\u093f\u092e\u094d\u0928 \u0938\u0942\u091a\u0940\u092c\u0926\u094d\u0927 \u0915\u094d\u0930\u093f\u092f\u093e\u0915\u0932\u093e\u092a\u094b\u0902 \u0915\u094b \u0927\u094d\u092f\u093e\u0928 \u0938\u0947 \u0926\u0947\u0916\u093f\u090f\u0964 \u0905\u092a\u0928\u0940 \u0915\u093e\u0930\u094d\u092f \u0936\u092c\u094d\u0926 \u0915\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u0924\u0930\u094d\u0915 \u0926\u0940\u091c\u093f\u090f \u0915\u093f \u0907\u0928\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092f \u0939\u094b \u0930\u0939\u093e \u0939\u0948 \u0905\u0925\u0935\u093e \u0928\u0939\u0940\u0902\u0964<\/strong>
\n(i) \u0938\u0942\u092e\u093e \u090f\u0915 \u0924\u093e\u092c\u093e\u0932 \u092e\u0947\u0902 \u0924\u0948\u0930 \u0930\u0939\u0940 \u0939\u0948\u0964<\/strong>
\n(ii) \u090f\u0915 \u0917\u0927\u0947 \u0928\u0947 \u0905\u092a\u0928\u0940 \u092a\u0940\u0920 \u092a\u0930 \u092c\u094b\u091d\u093e \u0909\u0920\u093e \u0930\u0916\u093e \u0939\u0948\u0964<\/strong>
\n(iii) \u090f\u0915 \u092a\u0935\u0928 \u091a\u0915\u094d\u0915\u0940 (\u0935\u093f\u0902\u0921 \u092e\u093f\u0932) \u0915\u0941\u090f\u0901 \u0938\u0947 \u092a\u093e\u0928\u0940 \u0909\u0920\u093e \u0930\u0939\u0940 \u0939\u0948\u0964<\/strong>
\n(iv) \u090f\u0915 \u0939\u0930\u0947 \u092a\u094c\u0927\u0947 \u092e\u0947\u0902 \u092a\u094d\u0930\u0915\u093e\u0936-\u0938\u0902\u0936\u094d\u0932\u0947\u0937\u0923 \u0915\u0940 \u092a\u094d\u0930\u0915\u094d\u0930\u093f\u092f\u093e \u0939\u094b \u0930\u0939\u0940 \u0939\u0948\u0964<\/strong>
\n(v) \u090f\u0915 \u0907\u0902\u091c\u0928 \u091f\u094d\u0930\u0947\u0928 \u0915\u094b \u0916\u0940\u0902\u091a \u0930\u0939\u093e \u0939\u0948\u0964<\/strong>
\n(vi) \u0905\u0928\u093e\u091c \u0915\u0947 \u0926\u093e\u0928\u0947 \u0938\u0942\u0930\u094d\u092f \u0915\u0940 \u0927\u0942\u092a \u092e\u0947\u0902 \u0938\u0942\u0916 \u0930\u0939\u0947 \u0939\u0948\u0902\u0964<\/strong>
\n(vii) \u090f\u0915 \u092a\u093e\u0932-\u0928\u093e\u0935 \u092a\u0935\u0928 \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u0915\u093e\u0930\u0923 \u0917\u0924\u093f\u0936\u0940 \u0939\u0948\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n(i) \u0915\u093e\u0930\u094d\u092f \u0939\u094b \u0930\u0939\u093e \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u092f\u0939\u093e\u0901 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0939\u094b \u0930\u0939\u093e
\n\"NCERT
\n\"NCERT
\n(vii) \u0907\u0938 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092f \u0939\u094b \u0930\u0939\u093e \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u092a\u0935\u0928 \u090a\u0930\u094d\u091c\u093e \u0926\u094d\u0935\u093e\u0930\u093e \u092c\u0932 \u0932\u0917\u093e\u0928\u0947 \u092a\u0930 \u092a\u093e\u0932 \u0928\u093e\u0935 (Sailboat) \u092e\u0947\u0902 \u0917\u0924\u093f \u0939\u094b\u0924\u0940 \u0939\u0948 \u0905\u0930\u094d\u0925\u093e\u0924\u094d \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p>\n

\u092a\u094d\u0930\u0966 2. \u090f\u0915 \u092a\u093f\u0902\u0921 \u0915\u094b \u0927\u0930\u0924\u0940 \u0938\u0947 \u0915\u093f\u0938\u0940 \u0915\u094b\u0923 \u092a\u0930 \u092b\u0947\u0902\u0915\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u090f\u0915 \u0935\u0915\u094d\u0930 \u092a\u0925 \u092a\u0930 \u091a\u0932\u0924\u093e \u0939\u0948 \u0914\u0930 \u0935\u093e\u092a\u0938 \u0927\u0930\u0924\u0940 \u092a\u0930 \u0906 \u0917\u093f\u0930\u0924\u093e \u0939\u0948\u0964 \u092a\u093f\u0902\u0921 \u0915\u0947 \u092a\u0925 \u0915\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0924\u0925\u093e \u0905\u0902\u0924\u093f\u092e \u092c\u093f\u0902\u0926\u0941 \u090f\u0915 \u0939\u0940 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0930\u0947\u0916\u093e \u092a\u0930 \u0938\u094d\u0925\u093f\u0924 \u0939\u0948\u0902\u0964 \u092a\u093f\u0902\u0921 \u092a\u0930 \u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u093f\u0924\u0928\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u092f\u093e \u0917\u092f\u093e?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u091a\u0942\u0901\u0915\u093f \u092a\u093f\u0902\u0921 \u0915\u0947 \u092a\u0925 \u0915\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0924\u0925\u093e \u0905\u0902\u0924\u093f\u092e \u092c\u093f\u0902\u0926\u0941 \u090f\u0915 \u0939\u0940 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0930\u0947\u0916\u093e \u092a\u0930 \u0939\u0948\u0902 \u0905\u0930\u094d\u0925\u093e\u0924 \u092a\u093f\u0902\u0921 \u0915\u093e \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0939\u094b \u0930\u0939\u093e \u0939\u0948\u0964 \u0907\u0938\u0932\u093f\u090f \u0928\u0947\u091f \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0917\u0941\u0930\u0941\u0924\u094d\u0935\u0940\u092f \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0909\u0930\u094d\u0927\u094d\u0935\u093e\u0927\u0930 \u0928\u0940\u091a\u0947 \u0928\u0939\u0940\u0902 \u0939\u094b \u0930\u0939\u093e \u0939\u0948\u0964 \u0905\u0924\u0903 \u0917\u0941\u0930\u0941\u0924\u094d\u0935\u0940\u092f \u092c\u0932 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0915\u094b\u0908 \u0915\u093e\u0930\u094d\u092f \u0928\u0939\u0940\u0902 \u0939\u094b \u0930\u0939\u093e \u0939\u0948\u0964 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0917\u0941\u0930\u0941\u0924\u094d\u0935\u0940\u092f \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u0914\u0930 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0947 \u092c\u0940\u091a 90\u00b0 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u0924\u093e \u0939\u0948\u0964 \u0905\u0930\u094d\u0925\u093e\u0924 \u0915\u093e\u0930\u094d\u092f W =OJ
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 3. \u090f\u0915 \u092c\u0948\u091f\u094d\u0930\u0940 \u092c\u0932\u094d\u092c \u091c\u0932\u093e\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938 \u092a\u094d\u0930\u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u090a\u0930\u094d\u091c\u093e \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928\u094b\u0902 \u0915\u093e \u0935\u0930\u094d\u0923\u0928 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n\"NCERT<\/a><\/p>\n

\u092a\u094d\u0930\u0966 4. 20 kg \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u092a\u0930 \u0932\u0917\u0928\u0947 \u0935\u093e\u0932\u093e \u0915\u094b\u0908 \u092c\u0932 \u0907\u0938\u0915\u0947 \u0935\u0947\u0917 \u0915\u094b 5 ms-1<\/sup> \u0938\u0947 2 ms-1<\/sup> \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0930 \u0926\u0947\u0924\u093e \u0939\u0948\u0964 \u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u093f\u090f \u0917\u090f \u0915\u093e\u0930\u094d\u092f \u0915\u093e \u092a\u0930\u093f\u0915\u0932\u0928 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 5. 10 kg \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e \u090f\u0915 \u092a\u093f\u0902\u0921 \u092e\u0947\u091c \u092a\u0930 A \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 \u0930\u0916\u093e \u0939\u0948\u0964 \u0907\u0938\u0947 B \u092c\u093f\u0902\u0926\u0941 \u0924\u0915 \u0932\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u092f\u0926\u093f A \u0924\u0925\u093e B \u0915\u094b \u092e\u093f\u0932\u093e\u0928\u0947 \u0935\u093e\u0932\u0940 \u0930\u0947\u0916\u093e \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0939\u0948 \u0924\u094b \u092a\u093f\u0902\u0921 \u092a\u0930 \u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u0924\u0928\u093e \u0939\u094b\u0917\u093e? \u0905\u092a\u0928\u0947 \u0909\u0924\u094d\u0924\u0930 \u0915\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 6. \u092e\u0941\u0915\u094d\u0924 \u0930\u0942\u092a \u0938\u0947 \u0917\u093f\u0930\u0924\u0947 \u090f\u0915 \u092a\u093f\u0902\u0921 \u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0932\u0917\u093e\u0924\u093e\u0930 \u0915\u092e \u0939\u094b\u0924\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u0915\u094d\u092f\u093e \u092f\u0939 \u090a\u0930\u094d\u091c\u093e \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0928\u093f\u092f\u092e \u0915\u093e \u0909\u0932\u094d\u0932\u0902\u0918\u0928 \u0915\u0930\u0924\u0940 \u0939\u0948\u0964 \u0915\u093e\u0930\u0923 \u092c\u0924\u093e\u0907\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0915\u093f\u0938\u0940 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u091c\u093f\u0924\u0928\u0940 \u0915\u092e\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u0909\u0924\u0928\u0940 \u0939\u0940 \u0935\u0943\u0926\u094d\u0927\u093f \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u0915\u093f\u0938\u0940 \u090a\u0901\u091a\u093e\u0908 \u2018h’ \u092a\u0930 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0905\u0927\u093f\u0915\u0924\u092e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u091c\u0948\u0938\u0947-\u091c\u0948\u0938\u0947 \u0935\u0938\u094d\u0924\u0941 \u0928\u0940\u091a\u0947 \u0917\u093f\u0930\u0924\u0940 \u0939\u0948 \u0907\u0938\u0915\u0947 \u0935\u0947\u0917 \u092e\u0947\u0902 \u0935\u0943\u0926\u094d\u0927\u093f \u0939\u094b\u0924\u0940 \u091c\u093e\u0924\u0940 \u0914\u0930 \u0907\u0938 \u0924\u0930\u0939 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u0915\u092e\u0940 \u0924\u0925\u093e \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u0935\u0943\u0926\u094d\u0927\u093f \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u091c\u092c \u0935\u0938\u094d\u0924\u0941 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0938\u0924\u0939 \u092a\u0930 \u092a\u0939\u0941\u0901\u091a\u0928\u0947 \u0935\u093e\u0932\u093e \u0939\u094b\u0924\u093e \u0939\u0948 \u0924\u092c \u0907\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0905\u0927\u093f \u0915\u0924\u092e \u0924\u0925\u093e \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0928\u094d\u092f\u0942\u0924\u0928\u092e (\u0915\u094d\u092f\u094b\u0902\u0915\u093f h = 0) \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u0905\u0924: \u090a\u0930\u094d\u091c\u093e \u0928\u0937\u094d\u091f \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u0940 \u092c\u0932\u094d\u0915\u093f \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0914\u0930 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 K.E + P.E = \u0905\u091a\u0930 \u0939\u0940 \u0930\u0939\u0924\u093e \u0939\u0948\u0964 \u0905\u0924\u0903 \u0939\u092e \u0915\u0939 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902 \u0915\u093f \u090a\u0930\u094d\u091c\u093e \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0928\u093f\u092f\u092e \u0915\u093e \u0909\u0932\u094d\u0932\u0902\u0918\u0928 \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e \u0939\u0948\u0964
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 7. \u091c\u092c \u0906\u092a \u0938\u093e\u0907\u0915\u093f\u0932 \u091a\u0932\u093e\u0924\u0947 \u0939\u0948\u0902 \u0924\u094b \u0915\u094c\u0928-\u0915\u094c\u0928 \u0938\u0947 \u090a\u0930\u094d\u091c\u093e \u0930\u0942\u092a\u093e\u0902\u0924\u0930\u0923 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u091c\u092c \u0938\u093e\u0907\u0915\u093f\u0932 \u0938\u0935\u093e\u0930 \u092c\u0932 \u0932\u0917\u093e\u0924\u093e \u0939\u0948 \u0914\u0930 \u092a\u0948\u0921\u0932 \u0918\u0941\u092e\u093e\u0924\u093e \u0939\u0948 \u0924\u094b \u0907\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0935\u0939 \u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u0915\u093e\u0930\u094d\u092f \u0915\u0930 \u0930\u0939\u093e \u0939\u0948 \u091c\u093f\u0938\u0915\u0947 \u092b\u0932\u0938\u094d\u0935\u0930\u0942\u092a \u0938\u093e\u0907\u0915\u093f\u0932 \u0915\u0947 \u092a\u0939\u093f\u090f \u0917\u0924\u093f \u0915\u0930\u0928\u0947 \u0932\u0917\u0924\u0947 \u0939\u0948\u0902\u0964 \u0914\u0930 \u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u0915\u093e\u0930\u094d\u092f \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0915\u0941\u091b \u092d\u093e\u0917 \u0938\u0921\u093c\u0915 \u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0938\u093e\u0907\u0915\u093f\u0932 \u0915\u0947 \u091f\u093e\u092f\u0930\u094b\u0902 \u092a\u0930 \u0915\u093e\u0930\u094d\u092f\u0930\u0924 \u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0915\u093e \u0938\u093e\u092e\u0928\u093e \u0915\u0930\u0928\u0947 \u092e\u0947\u0902 \u092d\u0940 \u0935\u094d\u092f\u092f \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0915\u0947 \u0935\u093f\u0930\u0941\u0926\u094d\u0927 \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0909\u0937\u094d\u092e\u0940\u092f \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u093e \u0939\u0948\u0964
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 8. \u091c\u092c \u0906\u092a \u0905\u092a\u0928\u0940 \u0938\u093e\u0930\u0940 \u0936\u0915\u094d\u0924\u093f \u0932\u0917\u093e\u0915\u0930 \u090f\u0915 \u092c\u0921\u093c\u0940 \u091a\u091f\u094d\u091f\u093e\u0928 \u0915\u094b \u0927\u0915\u0947\u0932\u0928\u093e \u091a\u093e\u0939\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u0909\u0938\u0947 \u0939\u093f\u0932\u093e\u0928\u0947 \u092e\u0947\u0902 \u0905\u0938\u092b\u0932 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902 \u0924\u094b \u0915\u094d\u092f\u093e \u0907\u0938 \u0905\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0938\u094d\u0925\u093e\u0928\u093e\u0902\u0924\u0930\u0923 \u0939\u094b\u0924\u093e \u0939\u0948? \u0906\u092a\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0935\u094d\u092f\u092f \u0915\u0940 \u0917\u0908 \u090a\u0930\u094d\u091c\u093e \u0915\u0939\u093e\u0901 \u091a\u0932\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0939\u093e\u0901, \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0938\u094d\u0925\u093e\u0928\u093e\u0902\u0924\u0930\u0923 \u0939\u094b\u0924\u093e \u0939\u0948 \u0932\u0947\u0915\u093f\u0928 \u091a\u091f\u094d\u091f\u093e\u0928 \u092e\u0947\u0902 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0928\u0939\u0940\u0902 \u0939\u094b\u0928\u0947 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0915\u093e\u0930\u094d\u092f \u0936\u0942\u0928\u094d\u092f \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0939\u092e\u093e\u0930\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0935\u094d\u092f\u092f \u0915\u0940 \u0917\u0908 \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u0915\u093e\u0930\u0923 \u091a\u091f\u094d\u091f\u093e\u0928 \u092e\u0947\u0902 \u0925\u094b\u0921\u093c\u093e \u0935\u093f\u0930\u0942\u092a\u0923 (deformation) \u0939\u094b\u0924\u093e \u0939\u0948 \u092f\u093e \u090a\u0930\u094d\u091c\u093e \u0909\u0938\u0947 \u0935\u093f\u0930\u0942\u092a\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u093e \u092a\u094d\u0930\u092f\u093e\u0938 \u0915\u0930\u0924\u0940 \u0939\u0948 \u091c\u093f\u0938\u0938\u0947 \u0935\u094d\u092f\u0915\u094d\u0924\u093f \u0925\u0915\u093e\u0928 \u092e\u0939\u0938\u0942\u0938 \u0915\u0930\u0924\u093e \u0939\u0948 \u0914\u0930 \u0905\u0924\u0924: \u0909\u0937\u094d\u092e\u0940\u092f \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 (\u092a\u0938\u0940\u0928\u0947 \u092e\u0947\u0902) \u0930\u0942\u092a\u093e\u0902\u0924\u0930\u093f\u0924 \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964<\/p>\n

\u092a\u094d\u0930\u0966 9. \u0915\u093f\u0938\u0940 \u0918\u0930 \u092e\u0947\u0902 \u090f\u0915 \u092e\u0939\u0940\u0928\u0947 \u092e\u0947\u0902 \u090a\u0930\u094d\u091c\u093e \u0915\u0940 250 \u092f\u0942\u0928\u093f\u091f\u0947\u0902’ \u0935\u094d\u092f\u092f \u0939\u0941\u0908\u0902\u0964 \u092f\u0939 \u090a\u0930\u094d\u091c\u093e \u091c\u0942\u0932 \u092e\u0947\u0902 \u0915\u093f\u0924\u0928\u0940 \u0939\u094b\u0917\u0940?<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 10. 40 kg \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e \u090f\u0915 \u092a\u093f\u0902\u0921 \u0927\u0930\u0924\u0940 \u0938\u0947 5m \u0915\u0940 \u090a\u0901\u091a\u093e\u0908 \u0924\u0915 \u0909\u0920\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u093f\u0924\u0928\u0940 \u0939\u0948? \u092f\u0926\u093f \u092a\u093f\u0902\u0921 \u0915\u094b \u092e\u0941\u0915\u094d\u0924 \u0930\u0942\u092a \u0938\u0947 \u0917\u093f\u0930\u0928\u0947 \u0926\u093f\u092f\u093e \u091c\u093e\u090f \u0924\u094b \u091c\u092c \u092a\u093f\u0902\u0921 \u0920\u0940\u0915 \u0906\u0927\u0947 \u0930\u093e\u0938\u094d\u0924\u0947 \u092a\u0930 \u0939\u0948 \u0909\u0938 \u0938\u092e\u092f \u0907\u0938\u0915\u0940 \u0917\u0924\u093f \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u092a\u0930\u093f\u0915\u0932\u0928 \u0915\u0940\u091c\u093f\u090f\u0964 (g = 10 ms-1<\/sup>)<\/strong>
\n\"NCERT
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 11. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u091a\u093e\u0930\u094b\u0902 \u0913\u0930 \u0918\u0942\u092e\u0924\u0947 \u0939\u0941\u090f \u0915\u093f\u0938\u0940 \u0909\u092a\u0917\u094d\u0930\u0939 \u092a\u0930 \u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u093f\u0924\u0928\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u092f\u093e \u091c\u093e\u090f\u0917\u093e? \u0905\u092a\u0928\u0947 \u0909\u0924\u094d\u0924\u0930 \u0915\u094b \u0924\u0930\u094d\u0915\u0938\u0902\u0917\u0924 \u092c\u0928\u093e\u0907\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u092a\u0943\u0925\u094d\u0935\u0940 \u0909\u092a\u0917\u094d\u0930\u0939 \u092a\u0930 \u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u092c\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0936\u0942\u0928\u094d\u092f \u0939\u094b\u0917\u093e \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0909\u092a\u0917\u094d\u0930\u0939 \u092a\u0930 \u0915\u093e\u0930\u094d\u092f\u0930\u0924 \u0917\u0941\u0930\u0941\u0924\u094d\u0935 \u092c\u0932 \u0914\u0930 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0940 \u0926\u093f\u0936\u093e \u0915\u0947 \u092c\u0940\u091a 90\u00b0 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u0924\u093e \u0939\u0948\u0964
\n\u0917\u0923\u093f\u0924\u0940\u092f \u0930\u0942\u092a \u0938\u0947\u0903<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 12. \u0915\u094d\u092f\u093e \u0915\u093f\u0938\u0940 \u092a\u093f\u0902\u0921 \u092a\u0930 \u0932\u0917\u0928\u0947 \u0935\u093e\u0932\u0947 \u0915\u093f\u0938\u0940 \u092d\u0940 \u092c\u0932 \u0915\u0940 \u0905\u0928\u0941\u092a\u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902, \u0907\u0938\u0915\u093e \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948? \u0938\u094b\u091a\u093f\u090f\u0964 \u0907\u0938 \u092a\u094d\u0930\u0936\u094d\u0928 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0905\u092a\u0928\u0947 \u092e\u093f\u0924\u094d\u0930\u094b\u0902 \u0924\u0925\u093e \u0905\u0927\u094d\u092f\u093e\u092a\u0915\u094b\u0902 \u0938\u0947 \u0935\u093f\u091a\u093e\u0930-\u0935\u093f\u092e\u0930\u094d\u0936 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0939\u093e\u0901, \u092c\u0932 \u0915\u0940 \u0905\u0928\u0941\u092a\u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u092d\u0940 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948\u0964 \u092f\u0926\u093f \u092c\u093e\u0939\u094d\u092f \u092c\u0932 \u0905\u0928\u092a\u0938\u094d\u0925\u093f\u0924 \u0939\u0948 \u0924\u092c \u0928\u094d\u092f\u0942\u091f\u0928 \u0915\u0947 \u0917\u0924\u093f \u0915\u0947 \u092a\u094d\u0930\u0925\u092e \u0928\u093f\u092f\u092e \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930
\n(i) \u091c\u092c \u0935\u0938\u094d\u0924\u0941 \u0935\u093f\u0930\u093e\u092e\u093e\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0939\u0948 \u0924\u094b \u0935\u093f\u0930\u093e\u092e\u093e\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0939\u0940 \u0930\u0939\u0947\u0917\u093e\u0964
\n(ii) \u091c\u092c \u0935\u0938\u094d\u0924\u0941 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0917\u0924\u093f \u0938\u0947 \u090f\u0915 \u0938\u0940\u0927\u0940 \u0930\u0947\u0916\u093e \u092e\u0947\u0902 \u0917\u0924\u093f\u0936\u0940\u0932 \u0939\u0948 \u0924\u094b \u0917\u0924\u093f\u0936\u0940\u0932 \u0939\u0940 \u0930\u0939\u0947\u0917\u0940\u0964
\n\u0905\u0924\u0903 \u0938\u094d\u0925\u093f\u0924\u093f (ii) \u092e\u0947\u0902 \u092c\u093e\u0939\u094d\u092f \u092c\u0932 \u0915\u0940 \u0905\u0928\u0941\u092a\u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u092d\u0940 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0938\u0902\u092d\u0935 \u0939\u0948\u0964<\/p>\n

\u092a\u094d\u0930\u0966 13. \u0915\u094b\u0908 \u092e\u0928\u0941\u0937\u094d\u092f \u092d\u0942\u0938\u0947 \u0915\u0947 \u090f\u0915 \u0917\u0920\u094d\u0920\u0930 \u0915\u094b \u0905\u092a\u0928\u0947 \u0938\u093f\u0930 \u092a\u0930 30 \u092e\u093f\u0928\u091f \u0924\u0915 \u0930\u0916\u0947 \u0930\u0939\u0924\u093e \u0939\u0948 \u0914\u0930 \u0925\u0915 \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0915\u094d\u092f\u093e \u0909\u0938\u0928\u0947 \u0915\u0941\u091b \u0915\u093e\u0930\u094d\u092f \u0915\u093f\u092f\u093e \u092f\u093e \u0928\u0939\u0940\u0902? \u0905\u092a\u0928\u0947 \u0909\u0924\u094d\u0924\u0930 \u0915\u094b \u0924\u0930\u094d\u0915\u0938\u0902\u0917\u0924 \u092c\u0928\u093e\u0907\u090f\u0964<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0928\u0939\u0940\u0902, \u0909\u0938 \u0935\u094d\u092f\u0915\u094d\u0924\u093f \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u094b\u0908 \u092d\u0940 \u0915\u093e\u0930\u094d\u092f \u0928\u0939\u0940\u0902 \u0915\u093f\u092f\u093e \u0917\u092f\u093e\u0964 \u0905\u0930\u094d\u0925\u093e\u0924 \u0915\u093e\u0930\u094d\u092f = 0 (\u0936\u0942\u0928\u094d\u092f), \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0935\u0939 \u090f\u0915 \u0939\u0940 \u0938\u094d\u0925\u093e\u0928 \u092a\u0930 \u0916\u0921\u093c\u093e \u0939\u0948 \u0907\u0938\u0932\u093f\u090f \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 S = 0 \u0939\u0948\u0964 \u092a\u0930\u0902\u0924\u0941 \u0909\u0938\u0915\u0947 \u092a\u0947\u0936\u0940\u092f \u0925\u0915\u093e\u0928 \u0915\u093e \u0915\u093e\u0930\u0923 \u0909\u0938\u0915\u0947 \u092a\u0947\u0936\u0940 \u092e\u0947\u0902 \u0916\u093f\u0902\u091a\u093e\u0935 (Stretch) \u0939\u0948 \u0924\u0925\u093e \u0930\u0915\u094d\u0924 \u0915\u093e \u0935\u093f\u0915\u0943\u0924 \u092a\u0947\u0936\u0940 (Strained muscle) \u0915\u0940 \u0913\u0930 \u0905\u0927\u093f\u0915 \u0924\u0947\u091c\u0940 \u0938\u0947 \u091c\u093e\u0928\u093e\u0964 \u0907\u0938 \u0924\u0930\u0939 \u0915\u0947 \u092c\u0926\u0932\u093e\u0935 \u092e\u0947\u0902 \u0936\u093e\u0930\u0940\u0930\u093f\u0915 \u090a\u0930\u094d\u091c\u093e \u0935\u094d\u092f\u092f \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/p>\n

\u092a\u094d\u0930\u0966 14. \u090f\u0915 \u0935\u093f\u0926\u094d\u092f\u0941\u0924\u094d-\u0939\u0940\u091f\u0930 (\u090a\u0937\u094d\u092e\u0915) \u0915\u0940 \u0918\u094b\u0937\u093f\u0924 \u0936\u0915\u094d\u0924\u093f 1500W \u0939\u0948\u0964 10 \u0918\u0902\u091f\u0947 \u092e\u0947\u0902 \u092f\u0939 \u0915\u093f\u0924\u0928\u0940 \u090a\u0930\u094d\u091c\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0947\u0917\u093e?<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 15. \u091c\u092c \u0939\u092e \u0915\u093f\u0938\u0940 \u0938\u0930\u0932 \u0932\u094b\u0932\u0915 \u0915\u0947 \u0917\u094b\u0932\u0915 \u0915\u094b \u090f\u0915 \u0913\u0930 \u0932\u0947 \u091c\u093e\u0915\u0930 \u091b\u094b\u0921\u093c\u0924\u0947 \u0939\u0948\u0902 \u0924\u094b \u092f\u0939 \u0926\u094b\u0932\u0928 \u0915\u0930\u0928\u0947 \u0932\u0917\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u090a\u0930\u094d\u091c\u093e \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928\u094b\u0902 \u0915\u0940 \u091a\u0930\u094d\u091a\u093e \u0915\u0930\u0924\u0947 \u0939\u0941\u090f \u090a\u0930\u094d\u091c\u093e \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0915\u0947 \u0928\u093f\u092f\u092e \u0915\u094b \u0938\u094d\u092a\u0937\u094d\u091f \u0915\u0940\u091c\u093f\u090f\u0964 \u0917\u094b\u0932\u0915 \u0915\u0941\u091b \u0938\u092e\u092f \u092a\u0936\u094d\u091a\u093e\u0924\u094d \u0935\u093f\u0930\u093e\u092e \u0905\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0915\u094d\u092f\u094b\u0902 \u0906 \u091c\u093e\u0924\u093e \u0939\u0948? \u0905\u0902\u0924\u0924\u0903 \u0907\u0938\u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0915\u094d\u092f\u093e \u0939\u094b\u0924\u093e \u0939\u0948? \u0915\u094d\u092f\u093e \u092f\u0939 \u090a\u0930\u094d\u091c\u093e \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0915\u093e \u0909\u0932\u094d\u0932\u0902\u0918\u0928 \u0939\u0948?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n\"NCERT
\n\u092a\u094d\u0930\u093e\u0930\u0902\u092d \u092e\u0947\u0902 \u0938\u0930\u0932 \u0932\u094b\u0932\u0915 \u0935\u093f\u0930\u093e\u092e\u093e\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0932\u094b\u0932\u0915 \u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f A \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u092f\u0939 \u092e\u0927\u094d\u092f\u0938\u094d\u0925\u093f\u0924\u093f (Meanposition) \u0915\u0939\u0932\u093e\u0924\u093e \u0939\u0948\u0964 \u091c\u092c \u0907\u0938\u0947 \u0938\u094d\u0925\u093f\u0924\u093f B \u0924\u0915 \u0927\u0915\u0947\u0932\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u0914\u0930 \u092b\u093f\u0930 \u091b\u094b\u0921\u093c \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u0924\u092c \u0928\u093f\u092e\u094d\u0928 \u0938\u094d\u0925\u093f\u0924\u093f\u092f\u093e\u0901 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964<\/p>\n

(i) \u091c\u092c \u0932\u094b\u0932\u0915 \u0915\u093e \u0917\u094b\u0932\u0915 \u0938\u094d\u0925\u093f\u0924\u093f B \u092a\u0930 \u0939\u094b\u0924\u093e \u0939\u0948 (\u0926\u0947\u0916\u093f\u090f \u091a\u093f\u0924\u094d\u0930), \u0909\u0938\u092e\u0947\u0902 \u0915\u0947\u0935\u0932 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964
\n(ii) \u091c\u0948\u0938\u0947 \u0939\u0940 \u0917\u094b\u0932\u0915 \u0938\u094d\u0925\u093f\u0924\u093f B \u0938\u0947 \u0938\u094d\u0925\u093f\u0924\u093f A \u0924\u0915 \u0917\u0924\u093f \u0915\u0930\u0928\u093e \u0906\u0930\u0902\u092d \u0915\u0930\u0924\u093e \u0939\u0948, \u0909\u0938\u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0918\u0902\u091f\u0924\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948 \u0914\u0930 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092c\u0922\u093c\u0924\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964
\n(iii) \u091c\u092c \u0917\u094b\u0932\u0915 \u092e\u0927\u094d\u092f \u0938\u094d\u0925\u093f\u0924\u093f A \u092a\u0930 \u092a\u0939\u0941\u0901\u091a\u0924\u093e \u0939\u0948, \u0909\u0938\u092e\u0947\u0902 \u0915\u0947\u0935\u0932 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964
\n(iv) \u0920\u0940\u0915 \u0907\u0938\u0915\u0947 \u0935\u093f\u092a\u0930\u0940\u0924 \u091c\u0948\u0938\u0947 \u0939\u0940 \u0917\u094b\u0932\u0915 \u0938\u094d\u0925\u093f\u0924\u093f A \u0938\u0947 \u0938\u094d\u0925\u093f\u0924\u093f C \u0915\u0940 \u0913\u0930 \u091c\u093e\u0924\u093e \u0939\u0948, \u0909\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0918\u091f\u0928\u0947 \u0932\u0917\u0924\u0940 \u0939\u0948 \u092a\u0930\u0902\u0924\u0941 \u0909\u0938\u0915\u0940 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u092c\u0922\u093c\u0928\u0947 \u0932\u0917\u0924\u0940 \u0939\u0948\u0964
\n(v) \u091a\u0930\u092e \u0938\u094d\u0925\u093f\u0924\u093f C \u092a\u0930 \u092a\u0939\u0941\u0901\u091a\u0915\u0930, \u0917\u094b\u0932\u0915 \u0905\u0924\u094d\u092f\u0902\u0924 \u0915\u092e \u0938\u092e\u092f \u0915\u0947 \u0932\u093f\u090f \u0930\u0941\u0915\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0932\u093f\u090f, \u0938\u094d\u0925\u093f\u0924\u093f C \u092a\u0930 \u0917\u094b\u0932\u0915 \u092e\u0947\u0902 \u0915\u0947\u0935\u0932 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/p>\n

\u0907\u0938\u0938\u0947 \u0939\u092e \u092f\u0939 \u0928\u093f\u0937\u094d\u0915\u0930\u094d\u0937 \u0928\u093f\u0915\u093e\u0932\u0924\u0947 \u0939\u0948\u0902 \u0915\u093f \u091a\u0930\u092e \u0938\u094d\u0925\u093f\u0924\u093f B \u0914\u0930 C \u092a\u0930 \u0932\u094b\u0932\u0915 \u0915\u0947 \u0917\u094b\u0932\u0915 \u0915\u0940 \u0915\u0941\u0932 \u090a\u0930\u094d\u091c\u093e \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u0939\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948, \u091c\u092c\u0915\u093f \u092e\u0927\u094d\u092f \u0938\u094d\u0925\u093f\u0924\u093f A \u092a\u0930 \u0932\u094b\u0932\u0915 \u0915\u0947 \u0917\u094b\u0932\u0915 \u0915\u0940 \u0938\u0902\u092a\u0942\u0930\u094d\u0923 \u090a\u0930\u094d\u091c\u093e \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e (Ek) \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0905\u0928\u094d\u092f \u0938\u092d\u0940 \u092e\u093e\u0927\u094d\u092f\u092e\u093f\u0915 \u0938\u094d\u0925\u093f\u0924\u093f\u092f\u094b\u0902 \u092a\u0930, \u0938\u0930\u0932 \u0932\u094b\u0932\u0915 \u0915\u0947 \u0917\u094b\u0932\u0915 \u0915\u0940 \u090a\u0930\u094d\u091c\u093e \u0906\u0902\u0936\u093f\u0915\u0924\u0903 (Partially) \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0914\u0930 \u0906\u0902\u0936\u093f\u0915\u0924\u0903 .\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u092a\u0930\u0902\u0924\u0941 \u0915\u093f\u0938\u0940 \u092d\u0940 \u0938\u092e\u092f \u092a\u0930 \u0926\u094b\u0932\u0928 \u0915\u0930\u0924\u0947 \u0939\u0941\u090f \u0932\u094b\u0932\u0915 \u0915\u0940 \u0915\u0941\u0932 \u090a\u0930\u094d\u091c\u093e \u0935\u0939\u0940 (\u092f\u093e \u0938\u0902\u0930\u0915\u094d\u0937\u093f\u0924) \u0930\u0939\u0924\u0940 \u0939\u0948\u0964
\n\u0905\u0930\u094d\u0925\u093e\u0924\u094d P.E + K.E = \u0905\u091a\u0930 \u0930\u0939\u0924\u0940 \u0939\u0948\u0964<\/p>\n

\u0905\u0902\u0924\u0924\u0903 \u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0914\u0930 \u0935\u093e\u092f\u0941 \u0915\u0947 \u092a\u094d\u0930\u0924\u093f\u0905\u0935\u0930\u094b\u0927 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0938\u0930\u0932 \u0932\u094b\u0932\u0915 \u0915\u093e \u0917\u094b\u0932\u0915 \u0935\u093f\u0930\u093e\u092e\u093e\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0906 \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0910\u0938\u093e \u0907\u0938\u0932\u093f\u090f \u0939\u094b\u0924\u093e \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0935\u093e\u092f\u0941 \u0915\u0947 \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 \u0915\u093e \u0938\u093e\u092e\u0928\u093e \u0915\u0930\u0928\u0947 \u092e\u0947\u0902 \u090a\u0930\u094d\u091c\u093e \u0935\u094d\u092f\u092f \u0939\u094b\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u090a\u0937\u094d\u092e\u0940\u092f \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0938\u094d\u092a\u0937\u094d\u091f\u0924\u0903 \u0907\u0938 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u092d\u0940 \u090a\u0930\u094d\u091c\u093e \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0928\u093f\u092f\u092e \u0915\u093e \u0909\u0932\u094d\u0932\u0902\u0918\u0928 \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p>\n

\u092a\u094d\u0930\u0966 16. m \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e \u090f\u0915 \u092a\u093f\u0902\u0921 \u090f\u0915 \u0928\u093f\u092f\u0924 \u0935\u0947\u0917 \u096d \u0938\u0947 \u0917\u0924\u093f\u0936\u0940\u0932 \u0939\u0948\u0964 \u092a\u093f\u0902\u0921 \u092a\u0930 \u0915\u093f\u0924\u0928\u093e \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0928\u093e \u091a\u093e\u0939\u093f\u090f \u0915\u093f \u092f\u0939 \u0935\u093f\u0930\u093e\u092e \u0905\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0906 \u091c\u093e\u090f?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n\u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 = m
\n\u092a\u093f\u0902\u0921 \u0915\u093e \u0928\u093f\u092f\u0924 \u0935\u0947\u0917 = v
\n\u092a\u093f\u0902\u0921 \u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e Ek<\/sub> = \\(\\frac { 1 }{ 2 }\\) mv2<\/sup>
\n\u0938\u094d\u092a\u0937\u094d\u091f\u0924: \u092a\u093f\u0902\u0921 \u0915\u094b \u0935\u093f\u0930\u093e\u092e\u093e\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0932\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0907\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \\(\\frac { 1 }{ 2 }\\)mv2<\/sup> \u0938\u0947 \u0915\u092e \u0939\u094b\u0928\u0940 \u091a\u093e\u0939\u093f\u090f\u0964
\n\u092a\u093f\u0902\u0921 \u0915\u094b \u0935\u093f\u0930\u093e\u092e\u093e\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0932\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f w = -Ek<\/sub> = – \\(\\frac { 1 }{ 2 }\\) mv2<\/sup><\/p>\n

\u092a\u094d\u0930\u0966 17. 1500 kg \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u0940 \u0915\u093e\u0930 \u0915\u094b \u091c\u094b 60 km\/h \u0915\u0947 \u0935\u0947\u0917 \u0938\u0947 \u091a\u0932 \u0930\u0939\u0940 \u0939\u0948, \u0930\u094b\u0915\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u090f \u0917\u090f \u0915\u093e\u0930\u094d\u092f \u0915\u093e \u092a\u0930\u093f\u0915\u0932\u0928 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 18. \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 m \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u0947 \u090f\u0915 \u092a\u093f\u0902\u0921 \u092a\u0930 \u090f\u0915 \u092c\u0932 F \u0932\u0917 \u0930\u0939\u093e \u0939\u0948\u0964 \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0940 \u0926\u093f\u0936\u093e \u092a\u0936\u094d\u091a\u093f\u092e \u0938\u0947 \u092a\u0942\u0930\u094d\u0935 \u0915\u0940 \u0913\u0930 \u0939\u0948 \u091c\u094b \u090f\u0915 \u0932\u0902\u092c\u0947 \u0924\u0940\u0930 \u0938\u0947 \u092a\u094d\u0930\u0926\u0930\u094d\u0936\u093f\u0924 \u0915\u0940 \u0917\u0908 \u0939\u0948\u0964 \u091a\u093f\u0924\u094d\u0930\u094b\u0902 \u0915\u094b \u0927\u094d\u092f\u093e\u0928\u092a\u0942\u0930\u094d\u0935\u0915 \u0926\u0947\u0916\u093f\u090f \u0914\u0930 \u092c\u0924\u093e\u0907\u090f \u0915\u093f \u0915\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u090b\u0923\u093e\u0924\u094d\u092e\u0915 \u0939\u0948, \u0927\u0928\u093e\u0924\u094d\u092e\u0915 \u0939\u0948 \u092f\u093e \u0936\u0942\u0928\u094d\u092f \u0939\u0948\u0964<\/strong>
\n\"NCERT
\n\u0909\u0924\u094d\u0924\u0930-<\/strong>
\n(a) \u0936\u0942\u0928\u094d\u092f \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u0924\u0925\u093e \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0940 \u0926\u093f\u0936\u093e \u0915\u0947 \u092c\u0940\u091a 90\u00b0 \u0915\u093e \u0915\u094b\u0923 \u0939\u0948 \u0905\u0930\u094d\u0925\u093e\u0924\u094d \u090f \u0926\u0942\u0938\u0930\u0947 \u0915\u0947 \u0932\u0902\u092c\u0935\u0924\u094d \u0939\u0948\u0902\u0964
\n(b) \u0927\u0928\u093e\u0924\u094d\u092e\u0915, \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928, \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0939\u094b \u0930\u0939\u093e \u0939\u0948\u0964
\n(c) \u090b\u0923\u093e\u0924\u094d\u092e\u0915, \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0935\u093f\u0938\u094d\u0925\u093e\u092a\u0928 \u0915\u0940 \u0926\u093f\u0936\u093e \u092c\u0932 \u0915\u0940 \u0926\u093f\u0936\u093e \u0915\u0947 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0939\u094b \u0930\u0939\u093e \u0939\u0948\u0964<\/p>\n

\u092a\u094d\u0930\u0966 19. \u0938\u094b\u0928\u0940 \u0915\u0939\u0924\u0940 \u0939\u0948 \u0915\u093f \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u0924\u094d\u0935\u0930\u0923 \u0936\u0942\u0928\u094d\u092f \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948 \u091a\u093e\u0939\u0947 \u0909\u0938 \u092a\u0930 \u0915\u0908 \u092c\u0932 \u0915\u093e\u0930\u094d\u092f \u0915\u0930 \u0930\u0939\u0947 \u0939\u094b\u0902\u0964 \u0915\u094d\u092f\u093e \u0906\u092a \u0909\u0938\u0938\u0947 \u0938\u0939\u092e\u0924 \u0939\u0948\u0902? \u092c\u0924\u093e\u0907\u090f \u0915\u094d\u092f\u094b\u0902?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u0939\u093e\u0901, \u0939\u092e \u0938\u094b\u0928\u0940 \u0915\u0947 \u0907\u0938 \u0915\u0925\u0928 \u0938\u0947 \u0938\u0939\u092e\u0924 \u0939\u0948\u0902\u0964 \u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u0935\u0938\u094d\u0924\u0941 \u092a\u0930 \u0905\u0928\u0947\u0915 \u092c\u0932 \u0915\u093e\u0930\u094d\u092f \u0915\u0930 \u0930\u0939\u0947 \u0939\u094b\u0902 \u0914\u0930 \u0909\u0928\u0915\u093e \u092a\u0930\u093f\u0923\u093e\u092e\u0940 \u092c\u0932 \u0905\u0930\u094d\u0925\u093e\u0924\u094d \u0928\u0947\u091f \u092c\u0932 \u0936\u0942\u0928\u094d\u092f \u0939\u094b \u0924\u094b \u0935\u0938\u094d\u0924\u0941 \u0915\u093e \u0924\u094d\u0935\u0930\u0923 \u0936\u0942\u0928\u094d\u092f \u0939\u094b\u0917\u093e\u0964
\n[F = ma \u21d2 0 = ma \u21d2 a = 0 \u0915\u094d\u092f\u094b\u0902\u0915\u093f m \u0936\u0942\u0928\u094d\u092f \u0928\u0939\u0940\u0902 \u0939\u094b \u0938\u0915\u0924\u093e]<\/p>\n

\u092a\u094d\u0930\u0966 20. \u091a\u093e\u0930 \u092f\u0941\u0915\u094d\u0924\u093f\u092f\u093e\u0901, \u091c\u093f\u0928\u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0915\u0940 \u0936\u0915\u094d\u0924\u093f 500 w \u0939\u0948\u0964 10 \u0918\u0902\u091f\u0947 \u0924\u0915 \u0909\u092a\u092f\u094b\u0917 \u092e\u0947\u0902 \u0932\u093e\u0908 \u091c\u093e\u0924\u0940 \u0939\u0948\u0902\u0964 \u0907\u0928\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0935\u094d\u092f\u092f \u0915\u0940 \u0917\u0908 \u090a\u0930\u094d\u091c\u093e kuuh \u092e\u0947\u0902 \u092a\u0930\u093f\u0915\u0932\u093f\u0924 \u0915\u0940\u091c\u093f\u090f\u0964<\/strong>
\n\"NCERT<\/p>\n

\u092a\u094d\u0930\u0966 21. \u092e\u0941\u0915\u094d\u0924 \u0930\u0942\u092a \u0938\u0947 \u0917\u093f\u0930\u0924\u093e \u090f\u0915 \u092a\u093f\u0902\u0921 \u0905\u0902\u0924\u0924\u0903 \u0927\u0930\u0924\u0940 \u0924\u0915 \u092a\u0939\u0941\u0901\u091a\u0928\u0947 \u092a\u0930 \u0930\u0941\u0915 \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u093e \u0915\u094d\u092f\u093e \u0939\u094b\u0924\u093e \u0939\u0948?<\/strong>
\n\u0909\u0924\u094d\u0924\u0930-<\/strong> \u092e\u0941\u0915\u094d\u0924 \u0930\u0942\u092a \u0938\u0947 \u0917\u093f\u0930\u0924\u093e \u092a\u093f\u0902\u0921 \u0905\u0902\u0924\u0924: \u0927\u0930\u0924\u0940 \u092a\u0930 \u092a\u0939\u0941\u0901\u091a\u0928\u0947 \u092a\u0930 \u0930\u0941\u0915 \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0915\u0940 \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964
\n(i) \u0915\u0941\u091b \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0927\u094d\u0935\u0928\u093f \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902
\n(ii) \u0915\u0941\u091b \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0918\u0930\u094d\u0937\u0923 \u092c\u0932 \u0915\u0947 \u0935\u093f\u0930\u0941\u0926\u094d\u0927 \u0915\u093f \u0917\u090f \u0915\u093e\u0930\u094d\u092f \u0915\u0947 \u0915\u093e\u0930\u0923 \u090a\u0937\u094d\u092e\u0940\u092f \u090a\u0930\u094d\u091c\u093e \u092e\u0947\u0902\u0964 \u0924\u0925\u093e
\n(iii) \u0915\u0941\u091b \u0917\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0909\u0938\u0915\u0947 \u0935\u093f\u0928\u094d\u092f\u093e\u0938 (Configuation) \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0932\u093e\u0915\u0930 \u0938\u094d\u0925\u093f\u0924\u093f\u091c \u090a\u0930\u094d\u091c\u093e \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u093f\u0924 \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p>\n

Hope given NCERT Solutions for Class 9 Science Chapter 11\u00a0are helpful to complete your homework.<\/p>\n","protected":false},"excerpt":{"rendered":"

NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium) These Solutions are part of NCERT Solutions for Class 9 Science in Hindi Medium. Here we have given NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy. \u092a\u093e\u0920\u0917\u0924 \u0939\u0932 \u092a\u094d\u0930\u0936\u094d\u0928 (NCERT IN-TEXT QUESTIONS SOLVED) NCERT \u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 (\u092a\u0943\u0937\u094d\u0920 \u0938\u0902\u0916\u094d\u092f\u093e-164) …<\/p>\n

NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium)<\/span> Read More »<\/a><\/p>\n","protected":false},"author":9,"featured_media":7158,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[6],"tags":[],"yoast_head":"\nNCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium) - NCERT Solutions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-9-science-chapter-11-hindi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium) - NCERT Solutions\" \/>\n<meta property=\"og:description\" content=\"NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium) These Solutions are part of NCERT Solutions for Class 9 Science in Hindi Medium. Here we have given NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy. \u092a\u093e\u0920\u0917\u0924 \u0939\u0932 \u092a\u094d\u0930\u0936\u094d\u0928 (NCERT IN-TEXT QUESTIONS SOLVED) NCERT \u092a\u093e\u0920\u094d\u092f\u092a\u0941\u0938\u094d\u0924\u0915 (\u092a\u0943\u0937\u094d\u0920 \u0938\u0902\u0916\u094d\u092f\u093e-164) … NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium) Read More »\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-9-science-chapter-11-hindi\/\" \/>\n<meta property=\"og:site_name\" content=\"NCERT Solutions\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/NCERTSolutionsGuru\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-23T05:55:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-11-01T06:27:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ncertsolutions.guru\/wp-content\/uploads\/2018\/08\/NCERT-Solutions-for-Class-9-Science-Chapter-11-Work-Power-and-Energy-Hindi-Medium.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ncertsolguru\" \/>\n<meta name=\"twitter:site\" content=\"@ncertsolguru\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Prasanna\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"16 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/ncertsolutions.guru\/#organization\",\"name\":\"NCERT Solutions\",\"url\":\"https:\/\/ncertsolutions.guru\/\",\"sameAs\":[\"https:\/\/www.facebook.com\/NCERTSolutionsGuru\/\",\"https:\/\/www.instagram.com\/ncertsolutionsguru\/\",\"https:\/\/www.linkedin.com\/in\/ncertsolutionsguru\/\",\"https:\/\/in.pinterest.com\/ncertsolutionsguru\/\",\"https:\/\/en.wikipedia.org\/wiki\/National_Council_of_Educational_Research_and_Training\",\"https:\/\/twitter.com\/ncertsolguru\"],\"logo\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/ncertsolutions.guru\/#logo\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/i1.wp.com\/ncertsolutions.guru\/wp-content\/uploads\/2020\/05\/NCERT-Solutions.png?fit=460%2C45&ssl=1\",\"contentUrl\":\"https:\/\/i1.wp.com\/ncertsolutions.guru\/wp-content\/uploads\/2020\/05\/NCERT-Solutions.png?fit=460%2C45&ssl=1\",\"width\":460,\"height\":45,\"caption\":\"NCERT Solutions\"},\"image\":{\"@id\":\"https:\/\/ncertsolutions.guru\/#logo\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ncertsolutions.guru\/#website\",\"url\":\"https:\/\/ncertsolutions.guru\/\",\"name\":\"NCERT Solutions\",\"description\":\"NCERT Solutions for Class 1 to 12\",\"publisher\":{\"@id\":\"https:\/\/ncertsolutions.guru\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ncertsolutions.guru\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-9-science-chapter-11-hindi\/#primaryimage\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/i2.wp.com\/ncertsolutions.guru\/wp-content\/uploads\/2018\/08\/NCERT-Solutions-for-Class-9-Science-Chapter-11-Work-Power-and-Energy-Hindi-Medium.png?fit=1280%2C720&ssl=1\",\"contentUrl\":\"https:\/\/i2.wp.com\/ncertsolutions.guru\/wp-content\/uploads\/2018\/08\/NCERT-Solutions-for-Class-9-Science-Chapter-11-Work-Power-and-Energy-Hindi-Medium.png?fit=1280%2C720&ssl=1\",\"width\":1280,\"height\":720,\"caption\":\"NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium)\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-9-science-chapter-11-hindi\/#webpage\",\"url\":\"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-9-science-chapter-11-hindi\/\",\"name\":\"NCERT Solutions for Class 9 Science Chapter 11 Work, Power and Energy (Hindi Medium) - 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