Q. If $V,R$ and $g$ denote respectively the escape velocity from the surface of the earth radius of the earth, and acceleration due to gravity, then the correct equation is
A) $V = \sqrt{gR}$
B) $V = \sqrt{\frac{4}{3}gR^{3}}$
C) $V = R\sqrt{g}$
D) $V = \sqrt{2gR}$
Explanation
The correct answer is Option D: $V = \sqrt{2gR}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.