Q1: For the mass-spring-damper system shown in Fig. below, the object of mass 8kg is attached to a spring of natural length of 76.5cm is compressed to a length of 50cm by the weight of object and the damping constant of the damper B 16N. sec/m. A periodic load F = 320cos5t is applied to the system as shown. Obtain the displacement function of the object if all the initial conditions are zero. let g = 9.805m/sec². [7 Marks] Faswt Mx(t) K HB b. Obtain the Fourier series expansion for the following function f(x) = 0<x<π - п