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When a body is projected vertically up f...

When a body is projected vertically up from the ground, its velocity is reduced to `(frac(1)(3))^(rd)` of its initial value at height y above the ground . The maximum height reached by the body is

A

`frac(3)(4y)`

B

`frac(8y)(9)`

C

`frac(9)(8)y`

D

9y

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