An active suspension system can be developed using a spring-dashpot system as shown in Figure Q3. Spring constants are 2 N/m and 1 N/m, and viscous friction coefficients are each 1 Ns/m. Assume that displacements x, y, and z are measured from their respective steady-state positions (A, B and C). 2 N/m ww A B 1 Ns/m 1 N/m Figure Q3 X 1 Ns/m Z (1) (ii) (iii) Draw a free body diagram at point B, clearly showing the value of each force in terms of x, y, and z. [6] Write down the equations of motion at point B. [2] Write down the equations of motion at point C following a similar approach as in parts (i) and (ii). [5]