Most people know that Benjamin Franklin studied electricity by flying a kite during a storm. He also studied electricity indoors using a hand cranked...

Most people know that Benjamin Franklin studied electricity by flying a kite during a storm. He also studied electricity indoors using a hand cranked electrical generator (see figure below). For now, we are interested in the work done by the person in turning the crank. The entire apparatus is about 4.5 ft tall. Assume a person can apply a constant force on the crank's handle