Question

A forklift takes exactly 3.1 seconds to lift a box of mass 199 kg from the floor onto a shelf that is approximately 2.1 meters high.  This process happens at a constant velocity during that 3.1 second time interval. What is the power required by the forklift to accomplish this? In determining the work done, use g = 9.8 N/kg. 

Answer 1

$P=A/t=mgh/t=199\cdot 9.8\cdot2.1/3.1=1321 \ (W)$ .Answer