On a hot, summer day you put both of your hands on a 420-Kg yellow fire hydrant. This is attached properly to an underground water pipe. With all of your might, you push east on that fire hydrant for exactly 60 minutes. It did NOT move. How much work did you do?
To calculate the work done, we need to use the formula:
Work = Force × Distance
However, since the fire hydrant did not move, the distance it traveled is zero. Therefore, the work done in this case is zero.
To calculate the work done, we need to know the force applied and the distance over which the force is applied. In this case, since the fire hydrant did not move, the work done is zero.
Work (W) = force (F) * distance (d) * cosine(theta),
where theta is the angle between the force and the direction of displacement. Since the fire hydrant did not move, d is zero, resulting in a work done of zero.