F=GMm/R^2.
The original formula of Universal Gravitation, applicable to two particles or uniform spheres. Gravitation's magnitude is related to the mass of objects and the distance between them. The greater the mass of the objects, the stronger their Universal Gravitation; the further apart the objects, the weaker their Universal Gravitation.
This is absolutely not applicable on a conventional scale. When compared to the Electromagnetic Force, gravity's attractive force seems trivial. On the other hand, the gravity of planets renders any object's gravity within its gravity field indistinct. It's a force difficult even for instruments to detect. If two people each weighing sixty kilograms were half a meter apart, then the gravitational pull between them would be about one-thousandth of an ant's leg strength, and this one-thousandth of an ant's strength would be based on the people's centers of gravity, evenly distributed.
