Two friends,Girish and Neeraj,were discussing Newton's third law. They were perplexed about how action and reaction are equal and opposite. They could not think of an experiment by which they could ascertain this fact. Pushkar,who was their friend,told them that he would set up an experiment to prove this to them. By performing an experiment,Pushkar demonstrated the law.
$(a)$ Can you think of an experiment by which you can demonstrate this law?
$(b)$ What values do you think Pushkar has?

(N/A) Consider two spring balances connected together as shown in the figure.
The fixed end of balance $B$ is attached to the wall. When a force is applied through the free end of spring balance $A$,it is observed that both the spring balances show the same readings on their scales. It means that the force exerted by spring balance $A$ on spring balance $B$ is equal but opposite in direction to the force exerted by balance $B$ on balance $A$.
$(b)$ Pushkar exhibits an experimental mindset and a helpful nature.