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Engineering, 17.06.2021 06:40 gisellekatherine1

A lever and fulcrum are used to raise a heavy rock, which has a weight of 356.7 N. If the lever has a mechanical advantage of 8.7, what must the input force on the lever be in order to just begin lifting the rock?

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A lever and fulcrum are used to raise a heavy rock, which has a weight of 356.7 N. If the lever has...
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