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Which law states that for every action there is an equal and opposite reaction?

Newton's First Law

Newton's Second Law

Newton's Third Law

The statement "for every action there is an equal and opposite reaction" is a direct representation of Newton's Third Law of Motion. This principle articulates that forces always occur in pairs: when one object exerts a force on another, the second object exerts a force of equal magnitude but in the opposite direction on the first object.

For example, when you push against a wall, your hand applies a force to the wall, and simultaneously, the wall exerts an equal and opposite force back on your hand. This fundamental concept is crucial in understanding interactions in physics, as it emphasizes that forces do not act in isolation but are part of a mutual interaction.

In contrast, the other laws mentioned describe different principles: Newton's First Law pertains to the concept of inertia and the motion of an object in the absence of a net force, while Newton's Second Law describes the relationship between force, mass, and acceleration. Newton's Law of Universal Gravitation outlines the gravitational force between two masses. These principles, while significant in their own right, do not correspond with the statement regarding action and reaction.

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Newton's Law of Universal Gravitation

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