A body of mass m collides against a wall with the velocity v and rebounds with the same speed. Its magnitude of change of momentum is

Question

A body of mass m collides against a wall with the velocity v and rebounds with the same speed. Its magnitude of change of momentum is, 2 m ⁡ v, m ⁡ v, 1 2 m ⁡ v, 0

MARKS App · Accepted Answer

Change in momentum Δ p = p f - p i Δ p = m v - - m v Δ p = 2 m v

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