I need help figuring out a question in the mechanics of materials 10 edition book its chapter 9 question 67.
9-67. The frame supports the triangular distributed load shown. Determine the normal and shear stresses at point E that act perpendicular and parallel, respectively, to the grains. The grains at this point make an angle of 45 with the horizontal as shown.
900 N/m
B
35
D 75 mm
200 mm
2.4 m
0.6 m
100 mm
3 m
45
30 mm
50 mm
1.5 m
100mm