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What is Understanding First, Second, and Third Class Levers about?

This document describes the three classes of levers and their examples in the human body. The first-class lever has the fulcrum between the effort and the load, like the spine. The second-class lever has the load between the effort and the fulcrum, like the feet. The third-class lever has the effort between the load and the fulcrum, like the muscles of the forearm. It also defines pulleys and their uses for changing the direction of a force.

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ScribdTranslations

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