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[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The work done in the given case is 0

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

For calculating the work done by an object we apply the formula, that is ~

  • [tex]f \times s \times \cos( \theta) [/tex]

where f represents force applied, and s represents displacement.

but here, the displacement is zero since the wall didn't move at all, Therefore If we plug it's value as 0, we get

  • [tex]f = 0 \times s \times \cos( \theta) [/tex]

hence,

  • [tex]work \: done = 0[/tex]

Solution:

  • Here, though the man is applying force on the wall, the work done is zero.
  • This is because work is said to be done only when a force acting on a body produces motion in it in the direction of the force applied.
  • Here, the man is trying to push the wall with a great force. He might fell exhausted after some time and say that he has done a lot of work.
  • But in terms of physics, he has done no work because the force applied by the person has not produced any displacement. We know, work done = force × displacement. If displacement is zero, then work done is zero.

So therefore, we can conclude that the man hasn't done any work.

Hope it helps.

Do comment if you have any query.

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