A satellite of mass is placed in a circular orbit above Earth’s surface

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

A satellite of mass

500\,\text{kg}

is placed in a circular orbit

400\,\text{km}

above Earth’s surface. Take Earth’s mass

M_{\oplus}=5.97\times10^{24}\,\text{kg}

, Earth’s radius

R_{\oplus}=6.37\times10^{6}\,\text{m}

and

G=6.67\times10^{-11}\,\text{N m}^2\text{kg}^{-2}

. Calculate the kinetic energy of the satellite in its orbit.