A sign is supported by a pipe having an outer diameter 110 mm and inner diameter 90mm. The dimensions of the sign are 2.0 m X 1.0 m, and its lower edge is 3.0 m above the base. Note that the center of gravity of the sign is 1.05 m from the axis of the pipe. The wind pressure against the sign is 1.5 kPa. Determine the maximum in-plane shear stresses due to the wind pressure on the sign at points A, B, and C, located on the outer surface at the base of the pipe.

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Pipe X B -2.0m- Rose's Editing Co. 1.05 m to c.g. - 110 mm X -C ↑ 1.0 m 3.0 m B C A Section X-X