9. Consider the feedback system in Figure 10.38, where the plant model is

500 G(s) = s(s +50) and the controller is a proportional-plus-integral (PI) controller given by G(s) = Kp + KI S Selecting Ky = 1, determine a suitable value of Kp for a percent overshoot of P.O=20%. 2. Kp =0.5 b. Kp = 1.5 c. Kp = 2.5 d. Kp = 5.0