L = 4 ft P q = 80 lb/ft h' = 3 in. - L2 =...

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L = 4 ft P q = 80 lb/ft h' = 3 in. - L2 = 8 ft - L3 = 5 ft- b = 2 in. Calculate the moment of inertia of the cross section of the beam about the horizontal axis that crosses the centroid of the figure shown. The value of t is 0.31 inches. L = 4 ft P q = 80 lb/ft h' = 3 in. - L2 = 8 ft - L3 = 5 ft- b = 2 in. Calculate the moment of inertia of the cross section of the beam about the horizontal axis that crosses the centroid of the figure shown. The value of t is 0.31 inches.