Question

What is the third law of motion?

Answer 1

Hey Physicists,

Third law of motion be Newton was:

Every action has an equal and opposite reaction.

Answer 2

$\huge{HEY!!}$

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When an object exerts a force on another object then the second object also exerts a force on the first. These two forces are always equal in magnitude but opposite in direction.

The force exerted by first object on the second object is called action the force exerted by second of object on the first is called reaction .So the third law of motion is called the law of action and reaction.

To every action there is an equal and opposite reaction. The action and reaction always act on two different objects.

$F_{AB}$ is the force exerted by body A on B and $F_{BA}$ is the force exerted by B on A, then according to Newton's third law

$F_{AB} = -F_{BA}$

Force on B by BA = - Force on A by B

Action = -Reaction