To calculate the fulcrum location of a lever of length L, follow these steps:
Determine the class of the lever based on the location of the fulcrum, the load Fr, and the effort Fe.
Calculate the mechanical advantage MA using the equation MA = Fr/Fe.
For a class I lever, calculate the distance dr of the fulcrum from the load using dr = L / (MA + 1).
For a class II lever, determine the distance dr of the fulcrum from the load using dr = L / MA.
For a class III lever, the distance dr of the fulcrum from the load is equal to the length of the lever, dr = L.
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