determine if work is done on the nail if each person pulls the handle to the left and the nail moves. explain your reasoning.

Question

Science class 8th grade

Answer 1

Work is defined as motion (force) over a distance.  If 2 people pull on something and it does not move, then force was exerted, but not work.  If something physically moves then work is being done on it.  Therefore, if the nail moves then work has been done on it.