Physics

Problem

Two points

A

and

B

lie on the line joining the centre of Earth such that their distances from the centre are

2R_{E}

and

3R_{E}

respectively, where

R_{E}

is Earth’s radius. Which point has the higher gravitational potential? Calculate the potential difference

V_{B}-V_{A}

in terms of

G, M_{E}

and

R_{E}