Can work be done on a system if there is no motion?
A) Yes, since motion is only relative.
B) Yes, if the sum of the external forces is zero.
C) Yes, if an external force is acting on the system.
D) No, since a system which is not moving has no energy.
E) No, since work involves a non-zero displacement.

Question

Quizplus · Accepted Answer

Work requires a non-zero displacement; without motion, displacement is zero, so no work is done.

Can Work Be Done on a System If There Is