When a man pushes a wall but the wall does not move, what is the work done by the man on the wall?

Question

When a man pushes a wall but the wall does not move, what is the work done by the man on the wall? — Exam MCQ

rrbjepyq.in · Accepted Answer

A. Zero work is done as there is no displacement of the wall. — Work is W = F s cosθ. Since the wall does not move, displacement s = 0. Therefore, the work done on the wall is zero.

rrbjepyq.in · Answer

B. Negative work is done as the wall resists the push.

rrbjepyq.in · Answer

C. Positive work is done as force is applied.

rrbjepyq.in · Answer

D. Maximum work is done as the man uses full effort.

When a man pushes a wall but the wall does not move, what is the work done by the man on the wall?

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