Question

Give two examples illustrating Newton's third law of motion.

Answer 1

Examples of Newton's third law:-

1. When a man jumps out from a boat, the boat moves backwards. This is due to the fact that to step out of the boat, the man presses the boat with his foot in the backward direction. The push of the man on the boat is not fixed and is floating, it moves backwards due to the action force exerted by the man.
2. Gunman gets a jerk on firing a bullet from his gun. This is because when a bullet is fired from a gun, the force sending the bullet forward is equal to the force sending the gun backwards but due to the high mass of the gun, it moves only a little distance backwards giving a jerk to the gunman.