If the resultant internal moment acting on the cross section of the aluminum strut has a...

If the resultant internal moment acting on the cross section of the aluminum strut has a magnitude of M = 520 N ⋅ m and is directed as shown, determine the bending stress at points A and B . The location y of the centroid C of the strut’s cross-sectional area must be determined. Also, specify the orientation of the neutral axis.