what is lever? also mention it's types
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Three different types of levers exist, depending on where the input force, fulcrum, and load are. A class 1 lever has the fulcrum between the input force and load. A class 2 lever has the load between the fulcrum and input force. A class 3 lever is a lever that has the input force in between the fulcrum and the load.
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Answer:
liver is a simple machine
Explanation:
like-sea saw,wheel barrow etc.
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