MCQ
If height of a satellite from the surface of earth is increased, then its
- APotential energy will increase
- BKinetic energy will decrease
- CTotal energy will increase
- ✓All of these
For a satellite orbiting at height $h$ from earth,
$P.E=-\frac{G M_e m_s}{\left(R_e+h\right)}$
$K \cdot E =\frac{G M_\theta m_s}{2\left(R_\theta+h\right)}$
$T.E=-\frac{G M_e m_s}{2\left(R_\theta+h\right)}$
If $h$ is increased, $P.E$ increases (becomes less negative)
$K.E$ decreases
$T.E$ increases (becomes less negative)
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