Q. A satellite of mass $m$ is placed at a distance $r$ from the centre of earth (mass $M)$. The mechanical energy of the satellite is
A) $- \frac{GMm}{r}$
B) $\frac{GMm}{r}$
C) $\frac{GMm}{2r}$
D) $- \frac{GMm}{2r}$
Explanation
The correct answer is Option D: $- \frac{GMm}{2r}$.
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.