a) State Newton's third law of motion. b) Give two examples to illustrate?

Answer

a) Two every action there is an equal and opposite reaction.
b) Examples
(1). While walking we press the ground with out feet in the backward direction (action): The ground exerts an equàl and opposite force on us (reaction) and thus.unable us to move forward.
(2) When a cricket ball is hit by a bat, the force on the báll at the time of collision is equal and opposite to the force on the ball at that time.