Example 2: Let me show you a little device that the locals call "The Wheel of Pain". It is part of Conan the Barbarian's fitness plan. He gets on this thing 24/7 for 20 years and then goes on to conquer the world (It really worked out his quads and gave him a rather displeasing disposition, both needed to conquer). He pushes on one of the wheel rungs that is 20 feet from the center. The Wheel of Pain grinds grain and takes 500 ft-lbs of torque. What force does Conan have to exert when all the other slaves die, and he is by himself?