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Physics
An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy E0. Its potential energy is
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Q. An artificial satellite moving in a circular orbit around the earth has a total (kinetic $+$ potential) energy $E_0$. Its potential energy is
AIIMS
AIIMS 2012
A
$-E_0$
B
$1.5 \,E_0$
C
$2 \,E_0$
D
$E_0$
Solution:
Potential energy $=2 \times$ (Total energy) $=2 E_{0}$
Because we know $U=-\frac{G M m}{r}$
$E_{0}=-\frac{G M m}{2 r}$