Question

3. The gravitational force between force two objects is 100 N. How should the distance between these objects
be changed so that force between them becomes 50 N?​

Answer 1

Explanation:

the gravitational force inversely depends on the radius of distance between two objects..hence if the distance or radius I'd doubles the gravitational force can decrease by a half

$force \: \alpha \: \frac{1}{radius}$