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A body of mass 10 kg is moving with a velocity 20 m s−1. If the mass of the body is doubled and its velocity is halved, find:(i) the initial kinetic energy, and (ii) the final kinetic energy. |
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Answer» A body of mass 10 kg is moving with a velocity 20 m s−1. If the mass of the body is doubled and its velocity is halved, find:(i) the initial kinetic energy, and (ii) the final kinetic energy. |
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