You want to lift a 500-lb object with a lever you can place
you want to lift a 500-lb object with a lever. you can place a falcrum under a long board a distance of 1.5 ft from the object. If you could only exert a force of 75 lb, how long is the board (total length) needed to lift the object?
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you want to lift a 500-lb object with a lever you can place a falcrum under a long board a distance of 15 ft from the
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