Question

2. (15pts) Given a feedback control system below

K(s² +4s+5)

S

Controller K(s)

1

(¹-1)

Plant G(s)

(a) (10pts) Draw Root Locus Diagram on the graph below for the system including all necessary

drawing rules being applied (asymptotes, break points, departure/arrival angles). Show your

procedures in detail.

(b) (5pts) Determine the range of K for which the closed-loop system is stable.

Graph Paper

Question image 1