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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A body of mass 'M' collides against a wall with velocity v and retraces its path with the same speed. The change in momentum is (take the initial direction of velocity as positive)

Answer: (D)

Solution

Δp = − = M(−v) − M(v) = −2Mv.

Question ID VK-154069