JosephJAGeorge JosephJAGeorge

11-05-2017
Physics

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A fulcrum moving a resistance of 200 g has a distance to the fulcrum of 20 cm, the effort mass of 50 g has a distance to the fulcrum of 80 cm. The resistance moves 10 cm, the effort moves 40 cm. Calculate the efficiency of the lever.

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gcantiga44 gcantiga44

26-11-2020

efficiency = AMA / IMA = 0.25 / 4 = 0.0625 × 100 = 62.5%

Efficiency = 60% (taking significant figures into account)

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