In Fig. 72, let m = 1 kg, c = 4 kg/sec, k = 24 kg/sec 2 , and r(t) = 10 cos t nt.

In Fig. 72, let m = 1 kg, c = 4 kg/sec, k = 24 kg/sec², and r(t) = 10 cos ωt nt. Determine w such that you get the steady-state vibration of maximum possible amplitude. Determine this amplitude. Then find the general solution with this and check whether the results are in agreement.

Spring m Mass Dashpot Fig. 72. Mass-spring system |wwww