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A ball of mass m moving at a speed v col...

A ball of mass `m` moving at a speed `v` collides with another ball of mass `3m` at rest. The lighter block comes to rest after collisoin. The coefficient of restitution is

A

`1//2`

B

`1//3`

C

`1//4`

D

`1//5`

Text Solution

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The correct Answer is:
A
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