Your definition of a lever is not very useful then. And the classifications of levers in general depend on the reference frame and what you consider the pivot, which is kind of arbitrary.ELLE_AW said:It seems to go against the definition.
Class III levers have the fulcrum located between the effort and the load, whereas Class I levers have the fulcrum at one end and Class II levers have the fulcrum at the other end.
Class III levers are designed to increase the speed and range of motion of the load, rather than the force applied. They are commonly found in human body movements, such as when lifting a dumbbell or swinging a baseball bat.
Although Class III levers may not follow the traditional lever principle of increasing force, they still demonstrate the fundamental concept of using a fulcrum to lift or move a load. In this case, the load is moved at a greater speed and distance, rather than with increased force.
Yes, there are many real-life examples of Class III levers. Some common examples include using a broom to sweep, using a fishing rod to cast a line, and using a hammer to drive a nail.
Understanding Class III levers can be useful in everyday life by helping us to understand how our bodies and other objects move and function. It can also help us to design and improve tools and equipment for more efficient and effective use.