A composite bar is obtained by gluing a uniform bar of length 1 and stiffness c = 1 to a second bar of length I and stiffness c = 2. Using the fact that the stress remains continuous, find and graph the displacement and stress when the bar is subject to a constant external force f = 1 with fixed ends m(0) = u(2) = 0. Which point is subject to the greatest stress? The greatest strain?