Question 2 (30 points) PID controllers: The plots below show the closed-loop velocity response of a motor to a unit step a reference input. Explain the differences between these three responses, highlight the best response out of the three and explain the steps required to obtain such a response (a) (b) (c) 1.5 1.5 1.5 1 1 If Outputy Outputy Output ylt 50.5 8 0.5 0.5 0.5 1 1.5 2 % 0.5 Time 1 Time 1.5 2 % 0.5 1.5 2 Time