Problem6 A proud German was displaying her heritage by draping the German flag o

Question

Problem6 A proud German was displaying her heritage by draping the German flag over a flag pole mounted to the side of her apartment building. Before she could get the flag inside, it began to rain and the material was completely soaked. The flag itself weighed 2 lb, but the water weighed an additional 5 lb. If the aspect ratio of the flag was 2.5 ft x 6 ft and the flag pole was 4 ft long, what are the shear and moment reactions at the attachment of the pole to the apartment wall? (NOTE: Assume the flag is uniformly distributed in its weight.

Explanation / Answer

Fy = 0

R - 2-5 = 0

R = 7lb

Length of the pole is 4ft. Weight is acting at center of flag, 1.25ft from the free end.

4-1.25 = 2.75ft

M=0

Mr - 7 x 2.75 = 0

Mr = 19.25 lb-ft

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