A. A mass of 2 kg moves horizontally along the xaxis under the inuence of a spring with spring constant lll Nf m1 a resistive foree of magnitude cu where c = 5 kg! s and 1' is the speed in mfsf and a driving foroe Fa cos wt where F\". = S N. {a} Find the driving frequency a; giving steady state oscillations of maximum amplitude and nd this maximum amplitude. {h} Find the phase shift of the steady state oscillation of the mass._ Twith respect to the oscillating driving force. at the driving frequency in {a}. {c} Find the driving frequencies at 1which the amplitude of the forced oscillation is 1 {Vi of its maximum value. {Do not assume weak damping.)