Newton’s Third Law For every action, there is an equal and opposite reaction When one object exerts a force on a second object, the second object simultaneously.

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Presentation transcript:

Newton’s Third Law For every action, there is an equal and opposite reaction When one object exerts a force on a second object, the second object simultaneously exerts a force equal in magnitude and opposite in direction on the first object.

Newton’s Third Law

Newton’s Third Law

Newton’s Third Law Mathematically stated, if object 1 pushes on object 2 with a force F12, then object 2 pushes on object 1 with a force F21 so that F21 = −F12

Newton’s Third Law Other examples: Trees, rocks, buildings, and cars, even the atmosphere, are all subject to the downward force of gravity. In all cases Earth exerts an equal and opposite upward push on those objects.