15
Jul
Joe has to move a crate that weighs 300 pounds. He can use a lever or he can just lift the crate. If he were to use a lever, he would place a 6-foot lever so that the fulcrum rests 2 feet from the crate and applies effort at the very end of the lever opposite the load. What mechanical advantage is gained by using the lever as opposed to lifting the crate directly?
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