Question: What is the minimum energy required to launch a satellite of mass $\mathrm{m}$ from the surface of a planet of mass $\mathrm{M}$ and radius $\mathrm{R}$ in a circular orbit at an altitude of $2 \mathrm{R}$ ?
$\frac{5 \mathrm{GmM}}{6 \mathrm{R}}$
$\frac{2 G m M}{3 R}$
$\frac{\mathrm{GmM}}{2 \mathrm{R}}$
$\frac{\mathrm{GmM}}{3 \mathrm{R}}$
Correct Option: 1
Solution:
