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this was way more interesting than what i am doing at work.
i just did a free-body diagram.
assuming the trees are 10 feet apart. and a kid weighs 50lbs. pulling down in the middle, when that rope displaces 3" (assuming no stretch - like a chain). you are pulling one tree to the side 1000lbs.
(unless i forgot how to do vortex problems...but i think it is just a similar triangles thing)
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poof! gone
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