Effort(E): The force applied on a machine to do some mechenical work. Load(L): The weight moved or the resistance overcome by a machine in doing some mechenical work. Fulcrum(F): A fixed point or an axil around which a machine turn i doing mechenical work. Effort arm: The perpendicular distance between the effort point and the fulcrum of a mach . . .
In this types of levers the effort is situated between the load and the fulcrum. In the levers of third order, the effort arm is always smaller than the load arm. Thus more effort is required to lift a lighter load, This lever is also called speed multiplier lever as load moves through lerger distance as compared to the effort. For examples: Sugar . . .