Question

Define third law of motion​

Answer 1

Answer:

Third law of Motion

If one object exerts a force on other object, the second object exerts a force on the first one with equal magnitude but in opposite direction.

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Answer 2

Let’s consider some of the examples of the third law of motion. When a person jumps of a boat, it moves in the backward direction. This can be explained using third law of motion. When the person applies a force on the boat in backward direction, the boat also applies a force on the person which helps him to move forward. As the boat also experiences a force in the backward direction so it moves backward. In this case can we say that acceleration of boat is equal to that of the person? We know that the force acting on the boat and the person is equal but their masses are different. Hence their acceleration will also be different.

One of the similar example is the recoil of a gun. The gun exerts some force on the bullet, so the bullet also exerts some force on the gun and hence we feel the recoil.

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