The material of which each of three shafts is made has a yield stress of Ï„_Yand a shear modulus of G. Determine which shaft geometry will resist the largest torque without yielding. What percentage of this torque can be carried by the other two shafts? Assume that each shaft is made from the same amount of material and that it has the samecross-sectional area A.

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A 60 60°