Electrical cables are being installed in a new building. The height of the building is 120 feet and the weight of the cable is 168 pounds. If the cable has to be vertically installed from the bottom to the top of the building, find the amount of work required to do so. A.
20,160.00 ft. lb.
B.
14,823.53 ft. lb.
C.
10,080.00 ft. lb.
D.
7,411.73 ft. lb.