The distributed loadings of soil pressure on the sides and bottom of a spread footing are shown. Simplify this system to a single resultant force and couple moment acting at A. What is the resultant force F and the couple moment M?
F = (72i + 125j)N, M = 83.5 N-m CCW
F = (144i + 125j)N, M = 135.7 N-m CCW
F = (144i + 125j)N, M = 83.5 N-m CCW
F = (72i + 125j)N, M = 102.1 N-m CCW
Answer: Option D
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