Chapter 7, Problem 2A

When a hammer exerts a force on a nail, how does this amount of force compare with that of the nail on the hammer?

To determine

To compare: The amount of force exerted by hammer on nail with the amount of force exerted by nail on hammer.

Explanation of Solution

Introduction:

Single force does not exist. Force always in pair. Force is always a part of mutual action which involves another force.

Hammer exerts a force on nail is action and nail exert a force on hammer is reaction.

The interaction between hammer exerted on a nail is same as nail exerts on hammer.

Conclusion:

Same reaction force nail exerts on hammer.