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प्रश्न
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उत्तर
P.E = mgh = 1 x 10 x 1 = 10J
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संबंधित प्रश्न
Give one example each in which a force does (a) positive work (b) negative work, and (c) zero work.
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(i) Which force has the least moment about O? Give a reason.
(ii)Which force has the greatest moment about O? Give a reason.
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State the energy changes which take place when A toy car with a wound spring moves on ground.
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