# A body is released from a point of distance R’ from the centre of earth. Its velocity at the time of….

Q: A body is released from a point of distance R’ from the centre of earth. Its velocity at the time of striking the earth will be (R’ > Re)
(a) $\displaystyle \sqrt{2 g R_e}$

(b) $\displaystyle \sqrt{ g R_e}$

(c) $\displaystyle \sqrt{2 g (R’ – R_e) }$

(d) $\displaystyle \sqrt{2 g R_e (1- \frac{R_e}{R’})}$

Ans: (d)