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Learn the definition and examples of action and reaction forces, which are equal and opposite forces that act on two objects when they interact. See questions and answers from other learners and join the conversation.
The law of action-reaction (Newton's third law) explains the nature of the forces between the two interacting objects. According to the law, the force exerted by object 1 upon object 2 is equal in magnitude and opposite in direction to the force exerted by object 2 upon object 1.
Learn the definition and examples of Newton's third law, which states that for every action there is an equal and opposite reaction. Watch a video and read comments from students and teachers on this physics concept.
Learn about the symmetry of nature: if an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. See examples of Newton's third law in action, such as swimming, walking, rockets, and birds.
Learn the definition, statement and examples of Newton's 3rd law of motion, which states that for every action there is an equal and opposite reaction. Explore the implications, applications and misinterpretations of this law in physics and everyday life.
Definition. When a body A exert a force on another body B. B will react exerting another force on A with equal magnitude and opposite direction. The first of the forces recieves the name of action force and the second reaction force where: F A B → = - F B A → F A B = F B A.
We sometimes refer to this law loosely as “action-reaction,” where the force exerted is the action and the force experienced as a consequence is the reaction. Newton’s third law has practical uses in analyzing the origin of forces and understanding which forces are external to a system.
