For a mass$-$spring$-$damper system with $m=1Kg,c=3N\frac{s}{m}$ and $k=11\frac{N}{m}$ :

Write the Transfer function $G(s)=1$ point

If a Proportional controller is added:

a$.$ Draw the block diagram $($similar to Simulink$)$ including the plant, setpoint, controller and feedback loop. $-1$ point

b$.$ Considering a unit feedback, i$.$e$.,H(s)=1,$ obtain the closed$-$loop transfer function using $G(s)=\frac{G(s)}{1+G(s)H(s)}.-1$ point

c$.$ Substitute $Kp=12-1$ point