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?
Choose the best answer from the options below:
A “all of your might”
B 1.0 J
C 0.0 J
D 25,200 J
E 7 J
1 answer
The correct answer is C) 0.0 J. Work is defined as the product of force applied and the distance moved in the direction of the force. Since the fire hydrant did not move, there was no distance moved and therefore no work done.
1 answer