Newton’s Law of Gravity
Newton came up with the following equation for gravity: any two objects attract one another based on the mass of each, the distance apart, and some constant based on units: Fgravity = G*m1*m2 / r122
where r12 is the distance between m1 and m2 and G = 6.67 x 10-11 Nt*m2 / kg2 which describes how strong gravity is.