The law that states that when one object exerts a force on a second object, the second object exerts a force of the same size but in the opposite direction on the first object is

Question

law of motion

Answer 1

The law you are referring to is known as Newton's Third Law of Motion. It states that for every action, there is an equal and opposite reaction. This means that if one object exerts a force on another object, the second object will exert a force of equal magnitude but in the opposite direction on the first object.