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A body is projected vertically up with a...

A body is projected vertically up with a velocity u. its velocity at half of its maximum height and at `3//4th` of its maximum height are.

Text Solution

Verified by Experts

From `v^(2)-u^(2) =2as,` here a = -g, when S = H/2 then
`v^(2) - u^(2) = 2(-g) (u^(2))/(4g) rArr v = (u)/(sqrt(2))`
When S = 3H/4,then
`v^(2) - u^(2) = 2(-g)(3u^(2))/(4(2g)) rArr v = (u)/(2)`
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