Chapter 7, Problem 24A

To determine

To identify: Whether a person push harder on one hand than the other while rubbing hand on each other.

Explanation of Solution

Introduction:

According to Newton’s third law, for every action force there is always equal and opposite reaction force.

While rubbing, when a person pushes harder on one hand by other hand, then a force is applied. An equal and opposite reaction force is also applied by other hand according to Newton’s third law. So, the two forces are equal. Thus, both hands push each other equally.

Conclusion:

Therefore, a person cannot push harder on the other hand while rubbing.