A cable that weighs 2 lb/ft is used to lift 800 lb of coal up a mine shaft 500 ft deep. Find the total work done.

Answer 1

W= F x D x cosT

F=Force= MA =

cable weighs 2lb/ft

800 lbs of coal lifted up

D = Distance= 500 ft

t= angle= 0 degrees

cos0 = 1

W = FD

but convert foot pounds per second to joules per second

you might find an online converter to do the math for you