For a distance education online/hybrid class submitting an a…

For a distance education online/hybrid class submitting an academic assignment, taking an exam, an interactive tutorial, or computer-assisted instruction, attending a study group that is assigned by the instructor, and participating in an online discussion directly related to the course content are all activities that count as attendance. 

Problem 1 (Formulation): 20pts For the composite stepped rod…

Problem 1 (Formulation): 20pts For the composite stepped rod below, (a) determine the tip displacement at the 100-k force end by modeling the rod using two prismatic truss elements connected in series. Use the truss prismatic element stiffness matrix given below. (b) derive a stiffness matrix for the stepped composite truss member with only 2 nodes at the ends of the stepped member (no node in the middle) using the direct stiffness approach.