Third Law

Newton’s third law of motion states that to every action there is an equal and opposite reaction. Action and reaction forces are equal and opposite but they do not cancel each other. This is because action and reaction forces act on different objects. So, this law is applicable only when two different bodies are involved. There are many applications of Newton’s third law of motion in our daily life. Walking on ground, recoiling of gun are few such examples. According to the law of conservation of momentum, total momentum of an isolated system remains constant, if no external force acts on the system. Rocket propulsion and recoiling of a gun are examples of conservation of momentum. Impulse is the product of the net force and the time for which it acts on the object. It can also be defined as the change in momentum of the object. It is a vector quantity and is directed along the direction of the force

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