Question

A spherical uniform planet is rotating about its axis. The velocity of a point on its equator is $V$. Due to the rotation of planet about its axis the acceleration due to gravity $g$ at equator is $\frac{1}{2}$ of $g$ at poles. The escape velocity of a particle on the pole of planet in terms of $V$.

• A. $V_e=2V$
• B. $V_e=V$
• C. $V_e=V/2$
• D. $V_e=\sqrt{2}V$

Answer 1

The correct option is A $V_e=2V$