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# A man pushes a wall and fails to displace it. He doesA. Negative workB. Positive but not maximum workC. Maximum workD. No work at all

Last updated date: 12th Sep 2024
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Hint: We know that work done in displacing the object is equal to the product of the force applied on the object and the distance traveled by it in the direction of force applied. We will use this concept to find out the work done by the man.

Let us write the expression for work done by the man when he pushes the wall.
$W = F \cdot d$ ……...……(1)
Here F is the amount of force applied by the man on the wall, and d is the distance traveled by the wall due to the application of force.
It is given that man fails to displace the wall that means distance traveled by the wall is zero.
$d = 0$
On substituting 0 for d in equation (1), we can write:
$\begin{array}{c} W = F \cdot 0\\ = 0 \end{array}$
Therefore, from the above expression, we can conclude that the man's work when he pushes the wall and fails to displace it is equal to zero

So, the correct answer is “Option D”.