exerts balanced forces that helps it from moving. exerts a force equal to the weight of the hammer. exerts an unbalanced force that changes its velocity. exerts an equal and opposite force back on the hammer.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When a hammer strikes a nail, the nail
Possibilities:
- exerts balanced forces that helps it from moving.
- exerts a force equal to the weight of the hammer.
- exerts an unbalanced force that changes its velocity.
- exerts an equal and opposite force back on the hammer.

exerts an equal and opposite force back on the hammer.