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A body projected up reaches a point A in...

A body projected up reaches a point A in its path at the end of `4^(th)` second and reaches the ground after 5 seconds from the start. The height of A above the ground is `(g=10ms^(2))`

A

`19.6m`

B

`30.6m`

C

`11m`

D

`20m`

Text Solution

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The correct Answer is:
D
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