Physics, 03.02.2021 15:40 jeniferfayzieva2018
HELP PLEASE How efficient is a pulley system if it enables you to lift a 700.0 Newton engine (Fr) 0.550 meters (dr) if you exerted 35.7 Newtons (Fe) of force while pulling 11.43 meters (de) of rope? (Hint: calculate Win & Wout, then efficiency J )
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