The work done by static friction can be:
A)positive.
B)negative.
C)zero.
D)Any of the above.

Question

Quizplus · Accepted Answer

Static friction does not do work because it acts on objects that are not moving relative to the surface they are on. However, theoretically, if it were to do work, it could be considered to have the potential to do positive, negative, or zero work depending on the scenario imagined, hence "Any of the above" is the most encompassing choice.

The Work Done by Static Friction Can Be