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Question
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the first order.
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Solution
The fulcrum in the centre, the load on one side and the effort on the other side make a lever of the first order.
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show a nut cracker In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E .

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