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Two identical balls, each of mass m, are...

Two identical balls, each of mass `m`, are tied with a string and kept on a frictionless surface. Initially, the string is slack. They are given velocities `2u` and `u`. in the same direction. Collision between the balls is perfectly elastic.

After the first collision, what is the total loss in kinetic energy of the balls?

A

`2"mu"^(2)`

B

`"mu"^(2)`

C

`3"mu"^(2)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
Since the collision is elastic there is no loss in `KE`
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