Question

explain what happens to the gravitational force between two object if the distance between the object is increased by thrice

Answer 1

Let the initial force between the two objects be

F = G >< m1 >< m2

           (r)2

After increasing distance by thrice force becomes :-

                   F' = G >< m1 >< m2        

                                (3r)2

                   F' =     G m1 m2

                                  9r2

               

                   F' =   _F__

                              9