Answer:

g(M1M2)

Explanation:

1. according to the problem the mass equal to M1 and M2
2. g=gravity
3. as per the Newton's laws of gravity ,any fallowing objects will fall with the speed of
4. Mass of object x (gravity)
5. distance=Mass of object x (gravity) x time taken to fall

Answer:

Please refer to the enclosure..

Hope this will be helpful.