Q .     A body is projected vertically upwards from the surface of the earth with a velocity equal to half the escape velocity. If `R` is the radius of the earth, maximum height attained by the body from the surface of the earth is

BITSAT 2009
A

`R/6`

B

`R/3`

C

`2R/3`

D

`R`

HINT

Maximum height attained by a projectile ` h = ( v^2R)/(2gR-v^2) `

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