By what percent does the stress increase or decrease if the


A steel wire (E = 200 GPa) of diameter d = 1.25 mm is bent around a pulley of radius R0 = 500 mm (see figure).

(a) What is the maximum stress σmax in the wire?

(b) By what percent does the stress increase or decrease if the radius of the pulley is increased by 25%?

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Mechanical Engineering: By what percent does the stress increase or decrease if the
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