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A ball of mass m moving with velocity v ...

A ball of mass m moving with velocity v collides head on elastically with another identical ball moving with velocity - V. After collision

A

Both the balls come to rest

B

One ball comes to rest and other ball travels back with velocity 2v.

C

Both balls move at right angles to their respective original directions of motion

D

Both balls move at an angle of `pi` to their respective original direction of motion

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