The system bellow has mass of A kg and spring constants C is in N/cm. The system is excited by a force p(t) = D sin(4t) as shown in figure

(D in Newton) A. If the system damping ratio 3=0.5, find the value of the damping coefficient "b". (10pts) B. By frequency analysis method find the steady-state response of the system. C. Find the maximum force transmitted to the left wall and percentage of force transmissibility to this wall. (10 pts)