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Determine the resultant couple moment acting on the beam

Civil Engineering

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Determine the resultant couple moment acting on the beam. Solve the problem two ways:
(a) Sum moments about point O; and
(b) Sum moments about point A.
Units Used:
kN = 103 N

Given:
F1 = 2 kN ?1 = 30 deg
F2 = 8 kN ?2 = 45 deg
a = 0.3 m
b = 1.5 m
c = 1.8 m