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A body is projected veritclaly upwards.T...

A body is projected veritclaly upwards.The times corresponding to height h while ascending and while descending are `t_(1)` and `t_(2)` respectively.
Then, the velocity of projection will be (take g as acceleration due to gravity)

A

`"gt"_1`

B

`"gt"_2`

C

`g(t_1+t_2)`

D

`(g(t_1 + t_2))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
If `t_1` and t_2` are time of ascent and descent respectively then time of flight `T = t_1 +t_2 = (2u)/(g)`
`rArr u = g(t_1 + t_2)/(2)`
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