A projectile is fired vertically upwards from the surface the earth with a velocity `Kv_e`, where `v_e` is the escape velocity and `k lt 1`. If R is the radius of the earth, the maximum height to which it will rise, measured from the centre of the earth, will be (neglect air resistance) ?

Options

A. `(1-k^2)/R`
B. `R/(1-k^2)`
C. `R(1-k)^2`
D. `R/(1+k^2)`

Answer

B