The Law of Action and Reaction
The Law of Action and Reaction
When discussing the concept of forces in physics, one of the fundamental principles to understand is the Law of Action and Reaction. This law, often attributed to Sir Isaac Newton, states that for every action, there is an equal and opposite reaction.
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The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.
What is the principle behind the Law of Action and Reaction? The principle behind the Law of Action and Reaction is that for every action, there is an equal and opposite reaction. This means that when an object exerts a force on another object, the second object exerts an equal force in the opposite direction.