Thin walled hollow circular rod ABC is fixed at A as shown. Outer and inner diameters are 30 mm and 24 mm, respectively. At the free end C, a force of 50 N is applied. The angle between the force and y-axis is 30. (a) Determine and show the internal forces at section a-a. (b) Determine the stresses at point H of the rod ABC and show the stress state on a properly oriented material point. (c) Determine the principal stresses and maximum shear stress at point H. (d) If the tensile yielding stress oy of the rod material is 100 MPa, determine whether yielding is going to occur or not at point H by considering both von Mises and Tresca criteria. Note: Show free body diagrams and each step for the solution. Solutions for which free body diagrams and each step is not given in the solution will not be evaluated. 250 mm 24 mm 30 mm 350 mm 100 mm Hi ja y 50 N 30