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.,
𝐹 ∝{1\over 𝑟^2}
If distance r becomes r/2, then the gravitational force will be proportional to
{1\over({r \over2})^2}={4\over r^2}Hence, if the distance is reduced to half, then the gravitational force becomes four times larger than the previous value.
