Question

Give an example to illustrate Newton’s third law of motion.

don't copy paste pls​

Answer 1

Let's first understand what is Newton's third law of motion?

Newton's third law of motion

It states that to "every action there is an equal and opposite reaction" or "action and reaction are equal and opposite"

⇛From word 'action' we mean that initial force applied by the first body on the second body.

⇛From the word reaction we mean the force applied by the second body in oppose to the force of the first body.

According to Newton, these forces are not only equal but are acting mutually, opposite to each other. Further, there must be two different bodies in a system for the Newton's third law to be valid.

Examples to illustrate Newton’s third law of motion:

• When a boatman pushes the bank with a pole, the bank offers an equal and opposite reaction which makes the boat move.

• It becomes difficult to walk on sandy beach, because when we push the sand with our feet, the sand yields. Thus, it does not react back with the same force.

• It is for the same reason that we cannot swim as fast as in water, as we can run on the ground. It is because water yields when we push it backwards with our hands.

• When a rubber ball strikes hard ground with some force (action), the ground reacts on the opposite direction with the equal force. Hence, the ball rebounds.

• When the bird flap their wings downwards they do action on the wind. The wind in turn reacts back and pushes the wings and hence the bird fly in the upward direction.

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