A satellite is in a circular orbit of radius about Earth

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

1000\,\text{kg}

satellite is in a circular orbit of radius

2R_E

about Earth, where

R_E = 6.4\times10^{6}\,\text{m}

. Take

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

and

M_E = 6.0\times10^{24}\,\text{kg}

. Find its gravitational potential energy. (a)

+3.1\times10^{10}\,\text{J}

(b)

-6.3\times10^{10}\,\text{J}

(c)

-3.1\times10^{10}\,\text{J}

(d)

-1.6\times10^{10}\,\text{J}