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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

**Statement I:** A bullet is fired from a rifle. If the rifle recoils freely, the kinetic energy of the rifle is more than that of the bullet. **Statement II:** In the case of a rifle-bullet system, the law of conservation of momentum is obeyed.

Answer: (D)

Solution

By momentum conservation, the rifle and bullet acquire equal and opposite momenta of the same magnitude p. Since KE = p²/2m, the lighter body (the

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Question ID VK-153387