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A bullet is fired from a rifle. If the rifle recoils freely, then the kinetic energy of the rifle is

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same as that of the bullet

more than that of the bullet

less than that of the bullet

equal or less than that of the bullet

answer is C.

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Detailed Solution

some amount of the energy is lost in the form of heat hence recoil energy of rifle will be less than that of the bullet

$k_{g} < k_{b} k α \frac{1}{m}$

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