Question

A weight of 100 pounds moved a distance of 12 feet equals 120 240 1200 ft.-lbs. of work.

Answer 1

Work = Fdcos(alpha)

Where F is force, D is distance, and Alpha is the angle to the parallel plane (in this case the ground)

I’ll assume alpha is 0 since it’s not given

100 • 12 • cos(0) = 1200 ft-lbs