1.

A ball is thrown straigt upward with a speed v from a point h meter above the ground. The time taken for the ball to strike the ground is

Answer»

`(v)/(G)[1+sqrt(1+(2hg)/(v^(2)))]`
`(v)/(g)[1-sqrt(1-(2hg)/(v^(2)))]`
`(v)/(g)[1-sqrt(1+(2hg)/(v^(2)))]`
`(v)/(g)[2+(2hg)/(v^(2))]`

ANSWER :A


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