Newton’s law of Universal Gravitation | Definition , Equation , Facts and Solved Examples.

The magnitude of the gravitational force F that two particles of masses  m1 and m2 , separated by a distance r ,  there exists an attraction , which is proportional to the product of their masses and inversely proportional to the square of distance between the exert force on each other is given by
F = Gm1m2 / r²
Where G is a constant , Called the universal gravitation constant . It’s value in SI units is G = 6.674×10-11 N.m²/kg².