The universal law of gravitation states that every object in the universe
attracts every other object with a force called the gravitational force. The
force acting between two objects is directly proportional to the product of
their masses and inversely proportional to the square of the distance between
their centers.
For two objects of masses m1and m2 and the distance between them r, the force
(F) of attraction acting between them is given by the universal law of
gravitation as:
