Solve this:
Q. Two identical spheres of radii r each are placed touching each other. The gravitational force between them is FG. It is found that F rn, where 'n' is ____________.
Dear Student ,
Here in this case the mass of the sphere
, M1 = and M2 = where be the density of the sphere .
Therefore the distance between the centres of the spheres is , d = r+r = 2R
Now the gravitational force between the spheres is ,
So n = 4
Regards