how does the force of gravitation between 2 objects change when the distance between them is doubled
According to the universal law of gravitation, gravitational force (F) acting between two objects is inversely proportional to the square of the distance (r) between them, i.e.,
If distance r becomes 2r, then the gravitational force will be proportional to
So if distance is doubled then gravitational force reduced to 4 time to that of original force.