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Pulleys and Levers

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Kenneth Ditmore

on 21 April 2010

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Transcript of Pulleys and Levers

Pulleys and Levers Levers Pulleys By: Kenneth D. Fixed: A fixed or a class 1 pulley has a fixed axel anchored in place. A fixed pulley has a mechanical advantage of 1. Movable: A movable or class 2 pulley has a free axel. A movable pully has a mechanical advantage of 2. Compound: A compound pulley is a combination of a fixed and movable pulley system. A compound pulley has a mechanical advantage of 3. A Class-1 Lever has the fulcrum in the middle. A Class-2 Lever always has the load in the middle. Class-3 Levers have the effort in the middle.
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