The way in which objects exert forces on each other is described by Newton's Laws of Motion.

Specifically, the relevant laws are:

* Newton's Third Law of Motion: This law states that for every action, there is an equal and opposite reaction. When two objects interact, they exert forces on each other. These forces are equal in magnitude and opposite in direction.

* Newton's Law of Universal Gravitation: This law describes the force of attraction between any two objects with mass. The strength of this force depends on the mass of the objects and the distance between them.

So, the way objects interact through forces is governed by these fundamental principles.