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A highly elastic ball moving at a speed ...

A highly elastic ball moving at a speed of `3 m//s` approaches a wall moving towards it with a speed of `3 m//s`. After the collision. the speed of the ball will be

A

`3m//s`

B

`6m//s`

C

`9m//s`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C
For elastic collision `e=1`. let speed of the ball be `v` towards left after collision then w.r.t wall, incident velocity `=` reflected velocity. We get `3+3=v-3impliesv=9m//s`
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