A worker on scaffolding 65 ft above the ground needs to lift a 400 lb bucket of cement from the ground to a point 40 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required?
A worker on scaffolding 65 ft above the ground needs to lift a 400 lb bucket of cement from the ground to a point 40 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required?
0 comments