Question

An artificial satellite moving in a circular orbit around the earth has a total $(kinetic+potential)$ energy $\frac{E_0}{4}$. Its potential energy is

• A. $\frac{E_0}{4}$
• B. $\frac{E_0}{2}$
• C. $\frac{E_0}{8}$
• D. $E_0$

Answer 1

The correct option is B $\frac{E_0}{2}$

Given the total energy of the satellite = $\frac{E_0}{4}$

We know that the Total Energy = $-$K.E = $+\frac{U}{2}$ , Where U = P.E

$⟹U=2\times Total$ $Energy$

$⟹U=2\times \frac{E_0}{4}⟹U=\frac{E_0}{2}$