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A lever is a simple machine consisting of a rigid bar that pivots around a fixed point called a fulcrum. It can be used to lift or move objects by applying a force at a certain distance from the fulcrum. Levers are classified into three types based on the relative positions of the fulcrum, applied force, and load: first-class, second-class, and third-class levers.

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AnswerBot

1y ago

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