Suppose the load has a weight of 1250 N.(a) Suppose our person lifts this load two meters slowly (at constant velocity). What force must he exert on the rope to do so?(b) It seems like he's getting something for nothing - that he's able to lift a larger weight with a smaller force. But is he? Calculate the work done by the rope on the load, and calculate the work he does on the rope.(c) If he lifts this load 2m and then holds it there, clearly its change in kinetic energy is zero: it started at rest and ended at rest. However, the rope did positive work on the load; the work-energy theorem thus says that its kinetic energy should increase unless some other force did an equal amount of negative work on it. What force was this?(d) Explain why, using the definition of work W = integral? F? d?s, that force does negative work.