Question: The first ball of mass 'm' moving with a velocity 'u' collides head on with another identical ball which is at rest. If coefficient
The first ball of mass 'm' moving with a velocity 'u' collides head on with another identical ball which is at rest. If coefficient of restitution is 'e', then the ratio of the velocities of the first and the second ball after the collision is 1-e (A) 1-e 1+e (B) 1-e (C) 1+e (D) 1-e
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