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A roadway sign weighs 6.2 kN and is supported by a structural pipe that has an outside diameter of 205 mm and a wall thickness of 14 mm. The resultant

force of the wind pressure acting on the sign is 10 kN, as shown. Assume a = 9.1 m, b = 3.8 m, P, = 10 kN, and P, 6.2 kN.(a) Determine the normal and shear stresses oH,TxyH at point H.(b) Determine the normal and shear stresses oK,Tyzk at point K.

Fig: 1

Fig: 2