Question

The gravitational force between two objects of masses m1 and m2 separated by a distance r
is F. How should the distance between them be changed so that force changes to 9 F.

Answer 1

Answer:

1/3 times

Explanation:

F=G m1 m2/r²

9F = 9G m1 M2/r²

9F = 9 G m1 M2 /(3R)²

9F = 9 (m1 M2)/R²

3R=r

Answer 2

Please refer to the attachment for the solution.......

Hope u get that right......