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When a body is proiected from a level gr...

When a body is proiected from a level ground the ration of its speed in the vertical and horizonal direction is 4 : 3. If the velocity of projection is u. the time after which the raion of the velocities in the vertical and horizontal directions are reversed is

A

`(7u)/(20g)`

B

`(35u)/(10g)`

C

`(9u)/(8)`

D

`(10u)/(g)`

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The correct Answer is:
A
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