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A body of mass M hits normally a rigid wall with velocity V and bounces back

A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is

Options

(a) MV
(b) 1.5 MV
(c) 2MV
(d) zero

Correct Answer:

2MV

Explanation:

Impulse experienced by the body
= change in momentum
MV – ( – MV) = 2 MV

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