Physics, 01.04.2020 08:30 eross92604
25. A student is removing rocks from a garden. She exerts a force of 218 N on a lever to raise one rock a distance of 11.0 cm.
a. If the rock weighs 1050 N, how far does the girl move her end of the lever if the lever is an ideal machine?
b. If the lever actually has an efficiency of 78.3 percent, how far does the girl move her end of the lever?
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25. A student is removing rocks from a garden. She exerts a force of 218 N on a lever to raise one r...
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