Question

The magnitude of gravitational force on a body of mass 10 kg placed at a

point is 20 N. Find the magnitude of gravitational field at that point. What

will happen to the gravitational field at that point if we place a mass of 5 kg

instead of 10 kg?​

Answer 1

Answer:

Gravitational field and potential at a distance r are E and V respectively.

E=

r

2

GM

V=

r

GM

Thus V=Er=6×8×10

6

V=4.8×10

7

Nm/kg