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A ball with initial momentum P collides ...

A ball with initial momentum P collides with rigid wall elastically. If `P^(1)` be it's momentum after collision then

A

`P^(1)=P`

B

`P^(1)=-P`

C

`P^(1)=2P`

D

`P^(1)=-2P`

Text Solution

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The correct Answer is:
B
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