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A movable pulley is a pulley the place when you go a hefty item, the drum moves with it. There is no modify in the course of the drive you need to utilize, but the load will “come to feel” lighter than it in fact is. For illustration, if you happen to be hauling a weighty hay bale up the barn’s attic, a moveable pulley will make the load come to feel a lot lighter, even even though you might be pulling in the identical direction.

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