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

equal to that of the bullet

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less than that of the bullet

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more than that of the bullet

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zero

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Solution

The correct option is A less than that of the bullet
Since, the the mass of the bullet is smaller than the mass of the rifle hence, the velocity of the bullet is more than the rifle recoil velocity. Also, kinetic energy is inversely proportional to the mass. Hence, when a bullet is fired from a rifle and the rifle recoils freely then the kinetic energy of the rifle will be less than that of bullet.

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