A ball is dropped from a height of 5 m, ...

A ball is dropped from a height of 5 m, if it rebound upto height of 1.8 m, then the ratio of velocities of the ball after and before rebound is :

`3/5`

`2/5`

`1/5`

`4/5`

Text Solution

Verified by Experts

The correct Answer is:

`V_(2)/V_(1)=sqrt(2gxx1.8)/sqrt(2gxx5)=sqrt((18)/(50))=sqrt((9)/(25))`
`V_(2)/V_(1)=3/5`

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