A container of water is lifted vertically 3.0 m, then returned to its original position. If the total weight is 30. N, how much work was done?
A) No work was done.
B) 90 J
C) 45 J
D) 0.18 kJ
E) 0.90 kJ

Question

Quizplus · Accepted Answer

Work is defined as the force applied to an object times the distance over which that force is applied, in the direction of the force. When the container is lifted and then returned to its original position, the net distance moved in the direction of the force (gravity) is zero, meaning no net work is done on the system.

A Container of Water Is Lifted Vertically 3