Question

State application of third law of motion in daily life.

Answer 1

Applications of Newton's IIIrd law of motion :
1. Walking : While walking , a person presses the ground in the backward direction (action) by his feet. The ground pushes the person in forward direction with an equal force (reaction). The component of reaction in the horizontal direction makes the person move forward.
2. Firing from a gun : When a gun is fired, the bullet moves forward (action). The gun recoils backwards (reaction).
3. Swimming : A swimmer pushes the water backwards (action). The water pushes the swimmer forward (reaction) with the same force. Hence, the swimmer swims.