give reason-a boy and a man running with the same speed have different kinetic energies
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A running man has the same kinetic energy as that of a boy of half his mass. The man speed up by 2ms-1 and the body changes his speed by xms-1 so that the kinetic energies of the boy and the man are again equal
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A running man has the same kinetic energy as that of a boy of half his mass. The man speed up by 2ms-1 and the body changes his speed by xms-1 so that the kinetic energies of the boy and the man are again equal.
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