Newton’s Law of Gravitation

Every object in the universe exerts a gravitational pull on every other object. Magnitude of gravitational force is ∝ to the product of the objects’ masses. Magnitude of graviational force is inversely ∝ to the square of the distance between them. Constant of proportionality is defined as G (Newton’s universal gravitational constant).

F_grav = G (Mm/r²)