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A body 'x' with a momentum 'p' collides with another identical stationary body 'y' one dimensionally. During the collision 'y' gives an impulse 'J' to the body 'x'. Then the coefficient of restitution is

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a
2Jp-1
b
Jp+1
c
J p+1
d
J2p-1

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detailed solution

Correct option is A

v1=p-Jm ; v2=Jm

e=J-p-Jp
=2J-pp=2Jp-1

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