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A body is projected horizontally from th...

A body is projected horizontally from the top of a building of height h. Velocity of projection is u. Find the time it will take to reach the ground ,

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For the vertical motion AO,
`h=0*t+1/2"gt"^2 or, t=sqrt((2h)/g)`
As it corresponds to the actual motion AB , the time of flight is ,`t=sqrt((2h)/g)`.
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