Question

Explain the illustrations for Newton’s third law of motion briefly

Answer 1

Newton’s third law states that ‘for every action, there is an equal and opposite reaction.They always act on two different bodies.

If a body A applies a force F_A on a body B, then the body B reacts with force F_B on the body A, which is equal to F_A in magnitude, but opposite in direction. F_B = -F_A 

Eg: 

(i) When birds fly they push the air downwards with their wings (Action) and the air pushes the bird upwards(Reaction). 

(ii) When a person swims he pushes the water using the hands backwards (Action), and the water pushes the swimmer in the forward direction (Reaction). 

(iii) When you fire a bullet, the gun recoils backward and the bullet is moving forward (Action) and the gun equalises this forward action by moving backward (Reaction).