1.

A ball is dropped from height h on the ground where co-efficient of restitution is e. After one bounce the maximum height is

Answer»

`e^(2)H`
`esqrt(h)`
`eh`
`SQRT(eh)`

Solution :Velocity with which the BALL strikes the ground `u=sqrt(2gh)`
If the bal re bounces with velocity V, then `V=eu=esqrt(2gh)`
If `h'to` MAX velocity ofter one bounce, then
`0^(2)-V^(2)=2(-g)himpliesh'=e^(2)h`


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