Mechanical+Energy

=Mechanical Energy= = **Mechanical energy** is the useful way we sometimes refer to things like gears, engines, locomotives pulling trains, canon balls flying through the air, or other examples of energy in mechanical devices. But, of course, by now you see that all these moving parts contain kinetic energy. They are really just different modes of kinetic energy - the energy contained in a moving mass. In order to get these various objects spinning or rolling, a force has to be exerted. Work is a force acting through a distance, so the way they get moving and keep moving is by having work done on them. Work is an energy transfer process. =