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Biology, 10.12.2021 01:10 mistymjoy

A crowbar is used to lift a heavy rock. The mechanical advantage of the crowbar is 4 and the crowbar applies a force of 800 N to the rock. What is the input force applied to the crowbar?

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A crowbar is used to lift a heavy rock. The mechanical advantage of the crowbar is 4 and the crowbar...
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