Newton's Laws of Motion/Third Law

Physical Law
Newton's third law of motion is one of three physical laws that forms the basis for classical mechanics.

Statement of Law

 * To every force there is always an equal and opposite force.


 * That is, the forces of two bodies on each other are always equal and are directed in opposite directions.

As himself put it:
 * Whenever one body exerts a force on a second body, the second body exerts a force on the first body. These forces are equal in magnitude and opposite in direction.

Also see

 * Newton's First Law of Motion
 * Newton's Second Law of Motion