Answer 1

According to the universal law of gravitation, the force of gravitation between two objects is given by:-

`F=(Gm_1m_2)/r^2`

F is inversely proportional to the square of the distances between the objects. If the distance is doubled, then the gravitational force becomes one-fourth of its original value.

Similarly, if the distance is tripled, then the gravitational force becomes one-ninth of its original value.