![]() Propulsion of fish through the water is an example of such an action-reaction pair.We may see the variety of action-reaction pairs easily in nature. With the consistency of Newton’s third law of motion, the bullet pushes backwards upon the rifle. A gunpowder explosion will expand it outwards allowing the rifle to push forward on the bullet. Such recoil is the result of action-reaction force pairs. ![]() ![]() Many of us are familiar with the fact that a rifle recoils when fired. In the response of action, a thrusting force is produced in the opposite direction.Įvery object in the state of uniform motion will be having its same state of motion unless an external force on it. In other ways, if object X exerts a force on object Y, then object Y also exerts the same amount of force with the opposite direction on object X. This law is having the symmetry in nature as forces always occur in pairs. If a body X exerts a force on another body Y, then Y must exert a force of the same magnitude but opposite direction back on X. Then body Y too exerts a force on body X, and it is given as: Explanation of Newton’s Third Law of Motion The mathematical representation of Newton’s third law of motion is let X be the body exerting force on the body Y. Any object cannot exert a force on another without having the force itself. This law signifies a form of symmetry in nature. Then object Y must exert a force of equal quantity and opposite direction back on the object X. Newton’s Third Law says that, if an object X exerts a force on object Y. So, forces always come in pairs of equal and opposite action-reaction force pairs. The size of the forces on the first body equals the size of the force on the second body. The magnitude of the forces are the same and the direction of the force on the first object is opposite to the direction. It means that in every interaction, there is a pair of forces acting on the interacting objects. According to this law, when one object exerts some force on the other object, then the first object experiences a force in equal quantity but in the opposite direction of the force. These forces are termed as action and reaction pair. These are contact force like frictional force and non-contact force like a gravitational force.Īccording to Newton, when two objects interact, then they can exert the force on each other. Such forces can be further classified into two categories. Thus, force is a result of the interaction. This law of motion states that the force acting on anybody is equal to the product of its mass and the acceleration.įorce is a type of push or pulls which is acting on an object resulting in its interaction with another object. Also, Newton’s second law of motion describes what happens to the massive body with the effect of an external force. Such property of massive bodies to resist any change in the state of motion is termed as inertia. The object must require certain force from the outside world to cause such a change. Newton’s first law of motion implies that any object cannot start, stop, or change its direction by itself. 2 FAQs about Newton’s Third Law of Motion Introduction to Newton’s Third Law of Motion
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