Classes of Levers
#todo refer to mechanical engineers handbook We have different classes of levers.
First-Order Levers
Class 1 Lever: Rigid body with the fulcrum between the load and effort
Class 2 Lever: Rigid body with the fulcrum at one end and the effort (FE) at the other, with the load (FL) in between the fulcrum and effort
Class 3 Lever: fulcrum is located at one end of a Class 3 lever, the load (FL) is located at the other end, and the effort (FE) is between the load and the fulcrum.