Determine the order and degree of the differential equation, 3x- + 5x² (4²y) ³ d4x 3 dy4 dx² OA. First order, fourth degree OB. Fourth order, first degree OC. second order, third degree O D. third order, second degree O E. None of the Choices - xy = 0

Problem 1 Find the reaction forces of the supports on the beam and the forces in the articulated joints. Check on the calculations using the principle of virtual works. 91² 2ql B q A *+++ 1 t l 1 21 ^ t 1

By integrating the differential equations of equilibrium, calculate V, and M, for 0 < x < L. Clearly state the boundary conditions. Verify the solution by using the free body diagram method. Plot V, and M, vs L < 1. for 0 < L Vy Vy(z) Vy(0) V,(0) is V,(x) at 1 = 0 M, = M-(2) Po TTX' Py = Po sin () EI, L