A damped mass-spring system with values ​​of c = 100 kg/s, m ​​= 100 kg and k = 910 N/m, is subjected to a force of 10 cos (3t) N. The system is also subjected to initial conditions: Xo = 1 mm and Vo = 20 mm/s.
Calculate the total response, x(t), of the system.