Question

A sphere of mass 100kg is attracted by another spherical distance between their centers is 0.2 Find the G​

Answer 1

Answer:

The gravitational field at the mid-point of the line joining the centers of the two spheres =

(r/2)

2

GM

−

(r/2)

2

GM

=0 N

Gravitational potential at the midpoint of the line joining the centres of the two spheres is V=−

r/2

GM

−

r/2

GM

=−

r

4GM

V=−

0.1

4×6.67×10

−11

×100

=−2.68×10

−7

J/kg

Answer 2

g = GM / r²

9.8 = G * 100/ 0.2²