Answer :
Answer:
[tex] Gs = 1 / (s + 1)^3 [/tex]
Explanation:
A system is known to be a stable system if the poles of the system lie on the negative real axis of the s plane.
A system that could be driven unstable by a P-controller would be:
[tex] Gs = 1 / (s + 1)^3 [/tex]
As the value of K increases, the closed loop poles move into the right half s plane