Working with Levers by Ronald Machut

Working with Levers by Ronald Machut

Author:Ronald Machut [Machut, Ronald]
Language: eng
Format: epub
Publisher: The Rosen Publishing Group, Inc


THE THIRD-CLASS LEVER

In third-class levers, the load sits at one end of the plank with the fulcrum at the opposite end. Force is applied somewhere between the load and the fulcrum. If force is applied closer to the load, the load is easier to move. In thirdclass levers, the force and the load move in the same direction

Third-class levers are different from other levers because it takes more effort for a third-class lever to move a load. However, once force is applied, third-class levers can make a load move quickly.

Your arm is an example of a third-class lever. Whatever is in your hand is the load, your elbow is the fulcrum, and your upper arm muscle acts as the force.



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