What happens to the force between two object, if
(i) the mass of one object is doubled ? (ii) the distance between the object is doubled and tripled?
(iii) the masses of both object are doubled?

Explanation

As gravitational force between two object, `F prop (m_(1)m_(2))/r^(2)` thereforce,
(i) when mass of one object is doubled, the force become twice. (ii) when distance between the objects is doubled, force become `(1//4)` of its previous value. When distance between the objects is tripled, the force become `(1//9)` of its previous value . (iii) when masses of both object are doubled, force becomes 4 times.