What are levers? (Like we use third class lever and second class lever) What are those?
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What are levers? (Like we use third class lever and second class lever) What are those?
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The lever classes are identified by the relative location of the resistance, fulcrum and effort. First class levers have the fulcrum in the middle, between the load and resistance. Second class levers have resistance in the middle. Third class levers have the effort in the middle.