QUESTION 1 A single degree of freedom system is shown below. The equation of motion for this system is mx+ ck5kx=2kacos(ot) X,a cos(21) B. BEma5n RIN/mamnlitde nt the motion.of nolet Biea=15cm.av lamine n 02alnlate nd ante Wibapps/assessment/take/aunchjaplcourse asessment id34343 1Aioune ATNS INAAN uestion Complebion Status: X, a cos(S21) k k if m= 5kg. k=3 kN/m, amplitude of the motion of point Bis a=1.5cm and damping ratio is 0.2, calculate and enter !! the equivalent stiffness of the system in kNim. in N. the equivalent amplitude of the excitation of the system natural frequency of the system in rad/s and the damping coefficient C in Nsim Sk See and Submlt te sae and rubmit. Cick Sae All Anuers to me all ante