what is the law of interaction

The law of interaction is also known as Newtons third law of motion. It states that for every action, there is an equal and opposite reaction. Whenever two objects interact with each other, they exert forces upon each other. These forces are called action and reaction forces, and they are equal in magnitude and opposite in direction. For example, when you sit in a chair, your body exerts a downward force on the chair, and the chair exerts an upward force on your body. The law of interaction applies to all interactions between objects, whether they are contact forces or action-at-a-distance forces.