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A body has kinetic energy E when project...

A body has kinetic energy E when projected at angle of projection for maximum range. Its kinetic energy at the highest point of its path will be

A

`E`

B

`(E)/(2)`

C

`(E)/(sqrt(2))`

D

`zero`

Text Solution

Verified by Experts

The correct Answer is:
B
Maximum range is obtained at `45^(@)`.
`:. E' =1/2mv^(2) =1/2m ((u)/(sqrt2))^(2)`
`=(((1)/(2)m u^(2)))/2 =E/2`.
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