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It has been a long time since I have been in a physics class. My question should, I believe, be relatively simple. We are developing a prototype using a spool, cable, and pulleys to lift a weight. I would like to know the mechanical advantage presented in the design I am attaching as well as any explanations you might have in how the determination was arrived at. I am thinking it presents a 6:1 or 7:1 lifting advantage, but I may be way off. Please feel free to disabuse any assumptions I may have on this.
Doug Rasmussen asked