Physics, 31.01.2020 09:04 joejoefofana

Ablock and tackle is used to lift an automobile engine that weighs 1800 n. the person exerts a force of 300 n to lift the engine. how many ropes are supporting the engine? (remember that ama = force output/force input.)

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Ablock and tackle is used to lift an automobile engine that weighs 1800 n. the person exerts a force...