Find the gravitational potential difference between Earth’s surface and a point above…

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

Problem

Find the gravitational potential difference between Earth’s surface and a point

600\,\text{km}

above the surface. Take

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

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

, and

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

. (a)

5.9\times10^{6}\,\text{J\,kg}^{-1}

(b)

0.54\times10^{6}\,\text{J\,kg}^{-1}

(c)

5.4\times10^{6}\,\text{J\,kg}^{-1}

(d)

5.4\times10^{7}\,\text{J\,kg}^{-1}