A heavy rope that weighs 2.5 lb/ft hangs vertically from the top of a tall building. A 240 ft-lb work is needed to lift half of the rope to the top of the building. Find the length of the rope.

Question

lgbasallote · Answer

is this integral calculus?

anonymous · Answer

yes

shane_b · Answer

This should give you a pretty good idea of how to do it: http://math.wonderhowto.com/how-to/find-work-required-lift-rope-using-calculus-324635/

anonymous · Answer

i am given the work i need to find the length of the rope