A man unloads a truck that has 25 15 pound cinder blocks to a pallet 12 feet away. A. How much work has he done?B. How much power if he finished in 8 minutes?C. How much HP was exerted?
12 feet above, below or at the same elevation as the truck?
Moving things at the same level is not considered work done because there is no change of potential energy, kinetic energy nor dissipative energy.