Newton's Third Law

Definition

Newton's Third Law states that for every action, there is an equal and opposite reaction. This means that whenever one body exerts a force on another body, the second body exerts a force back on the first body with equal magnitude but in the opposite direction.

Related terms

Action-Reaction Pair:

A pair of forces that two objects exert on each other, always having equal magnitudes but acting in opposite directions.

Momentum:

The product of an object's mass and velocity. According to Newton's Third Law, momentum is conserved in a closed system.

Conservation Laws: Principles stating that certain properties (such as momentum or energy) remain constant in a closed system unless acted upon by external forces.