There are three laws of motion defined by Newton to describe all characteristics of it. here we will discuss about the third law of motion which describes about the action reaction between the bodies that exerts force on each other.
Newton's third Law of Motion Definition is given as: it states that every force has equal and opposite reaction followed to it. This means that when a body applies a force on other body then the second body will also exert a force on the first body. The magnitude of both the forces is equal. So it is many times stated as for every action there is equal and opposite reaction.
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The third law of motion is also known as action reaction law as it explains the action and reaction between the bodies exerting forces on each other. This law can also explains that all the existing forces occurs in pair which means that no force can occur alone. Let us understand this with the help of Examples of Newtons third Law of Motion :
If we fire a bullet off the rifle then the rifle exerts a force on the bullet which makes it move in the forward direction. When have you ever thought of the jerk that a person gets while firing. This jerk is due to the force exerted by the bullet on the rifle. Hence in this case the rifle exerted a force on bullet and bullet exerted the force on the rifle.
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One thing that should be noted from the Newton’s law is that the direction of both the forces is opposite. Rifle exerts force on the bullet in forward direction while bullet exerts the force in backward direction. Also the most important thing is that the forces are equal in magnitude. This fact might be surprising for you.
This might confuse you with the thought that if the forces are equal then why does bullet go so far and rifle remains there with just a jerk. This is due to the difference I weights of the two. As the bullet has much lesser mass it moves to large distance while the mass of rifle is more it moves a little and then stops.
Newtons third Law of Motion Examples can be observed in daily life also. For example when we walk on the road our feet exerts a pressure on the ground backwards. As a result of this the according to the law the road also exerts force on us in forward direction which makes us move in that direction.
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