Physics
Explain why the mechanical advantage of a class II type of lever is always more than 1.
Machines
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Answer
In Class II levers, the fulcrum F and the effort E are at the two ends of the lever and the load L is somewhere in between the effort E and the fulcrum F.
So, the load and the effort are on the same side of the fulcrum but in opposite directions and the effort arm is always longer than the load arm.
Therefore, the mechanical advantage is always greater than 1.
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