Please help me answer the question on top. Thks

Repeat the question (a) of Prob.8-2 with assuming the frame has 10 percent critical damping in each mode. m/2 Rigid = EI/3 EI/3 m Prob.8-2: The shear-frame in Prob. 3 of Assign.7-1 is subjected to a harmonic load 3 p2(t)= p, sin t as shown in Fig., where pe =128kN and = 0 4 From the result of Prob.3, Assig. 7-1, the modal frequency vector and mode shapes of the frame are: (6.336 1 1 1 1 0 ={13.86 and 2.186 1 -0.686 20.19 3.187 -2 0.314 P2 (t)- |2 EI3 2EI/3 sec m EI = 2 ORD And the data: m=1 kNs, El = 512 x10kNcm, h = 400cm (a)- Write the expression for the steady-state response of the top floor with assuming that the frame is undamped. (b)- Evaluate the displacements of all floors at the time of maximum steady-state response and plot the deflected shape at the time. 2h