What law states "for every action there is an equal and opposite reaction?"

Answer 1

Newton's third law of motion

According to Newton's third law of motion, forces always exist in pairs, each with the same magnitude but the opposite direction.

If an object #A# applies a force to another object #B#, object #B# will simultaneously apply a force equal in magnitude but opposite in direction to object #A#.

One pair of forces, for instance, is applied by the earth to you when you sit on a chair and by you on the earth when you apply a force of gravity that is equal in magnitude but directed in the opposite direction.

The force pushing you up is the force you are exerting on the chair, while the earth pulls you down. This is not a pair of forces because three objects are involved: the earth, the chair, and you. The force pair to the chair pushing you up is the force you are exerting on the chair.

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Answer 2

Cooper Adams

The law stating "for every action, there is an equal and opposite reaction" is Newton's third law of motion.

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Answer 3

Naomi Aronson

The law that states "for every action there is an equal and opposite reaction" is Newton's third law of motion.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.