Suppose you push horizontally on the wall of a building. For you to do work on the wall, which of the following need to happen?
A) the wall moves away from you
B) the wall lifts up
C) the wall moves sideways
D) b and c

Question

Quizplus · Accepted Answer

For work to be done on an object in a physics context, there must be displacement in the direction of the force applied. Since the question specifies pushing horizontally, the wall must move in the direction of the push (away from you) for work to be done.

Suppose You Push Horizontally on the Wall of a Building