» Newton's Third Law

Newton's Third Law, also known as the Law of Action and Reaction, states that two bodies exert equal and opposite forces on each other:

$$\vec{F}_{1}=-\vec{F}_{2}$$


FAQ

What does Newton's third law say?

If one body exerts a force on another, the second exerts an equal and opposite force back.

What is an action-reaction pair?

It is the pair of forces that act on different bodies during an interaction.

Does the law apply in everyday life?

Yes. It appears in walking, jumping, recoiling, collisions, and many other interactions.