Third Class Lever
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“The lever of the third class has the power between the weight and the fulcrum.” Examples: sewing machine treadle, forearm. -Foster, 1921
Keywords
fulcrum, weight, forearm, simple machine, power, arm muscles, lever diagram, third class leverGalleries
LeversSource
Ellsworth D. Foster ed. The American Educator (vol. 5) (Chicago, IL: Ralph Durham Company, 1921)
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