Determine the normal and shear stresses at point D that act perpendicular and parallel, respectively, to the grains. The grains at this point make an angle of 30 with the horizontal as shown. Point D is located just to the left of the 10-kN force.

ME211- Statics Professor Mohammad Noori Homework Set #7 Solution Topic: Structural Analysis- Trusses, Method of Joints 6(1,4,5,9,17,19) Topic: Structural Analysis- Trusses, Method of Sections 6(22,28,33,44,45,47,54,59,64,56)