Question

what happens to the gravitation force of attraction between two object if
a) mass of one of the object halved
b) distance between the two object is doubled

Answer 1

As you know that force of gravitation is g=GMm/D2
So

a) When mass of one object is halved the gravitational force also gets half.

b)When the distance is doubled the gravitational force becomes 1/4 .

Answer 2

Answer: Here is your answer:-

Explanation:  As you know that force of gravitation is g=GMm/D2

So

a) When mass of one object is halved the gravitational force also gets half.

b)When the distance is doubled the gravitational force becomes 1/4 .