5. A cantilever beam is loaded as shown in fig. 4, such that there is no twist of the cross-section. Assume that Extol = 200 GPa. (a) Find the centrold of the cross-section. (b) Calculate the moments of inertia and product of inertia of the cross-section. (c) Determine the orientation of the neutral axis at the section containing point A. (d) Determine the maximum normal stress. (e) In a diagram, indicate the location of the maximum normal stress on the cross-section. 1300 All dimensions in ma 1300 (d) ,max=-255.4 MPa. (e) At point A. = 5000 N P = 8000 N Figure 4 130 Cross-section - 110 Solution: (a) Using datum at top left corner: g=-45.48 mm, 2= -48.66 mm. (b) I, 1.019 x 10-5 m, I = 8.824 x 10-6 m, Iyz = -3.097 x 10-6 m. (c) 48.66" (5. +25 All dimensions in 30 -30