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A movable pulley is a pulley where when you go a weighty item, the drum moves with it. There is no alter in the course of the force you need to have to implement, but the load will “really feel” lighter than it in fact is. For example, if you are hauling a large hay bale up the barn’s attic, a moveable pulley will make the load truly feel a lot lighter, even though you might be pulling in the very same course.

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