Q. The escape velocity of a sphere of mass $m$ from earth having mass $M$ and radius $R$ is given by
A) $\sqrt{\frac{2GM}{R}}$
B) $2\sqrt{\frac{GM}{R}}$
C) $\sqrt{\frac{2GMm}{R}}$
D) $\sqrt{\frac{GM}{R}}$
Explanation
(a) Escape velocity does not depend on the mass of the projectiles
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.