Tightrope walker A 60-kg 1.6-m-tall tightrope walker stands on a tightrope. (a) In his hands he holds a 10-kg 2.0-m-long horizontal bar. At each end of the bar are two 5.0-kg balls hanging from 0.50-m-long strings. How much does this apparatus lower his center of mass? (b) How long should the strings be so that the center of mass of the walker-barhanging ball system is at the level of the rope? Indicate all assumptions made for each part of the problem.
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