A unity feedback system has OLTF, G (s) = 9/s(s + 3)

1.	A unity feedback system has OLTF, G (s) = 9/s(s + 3)
A.	Natural frequency = 9 rad/sec.
B.	Natural frequency = 3 rad/sec.
C.	Damping ratio = 1/2
D.	Damping ratio = 1/6
Answer» B. Natural frequency = 3 rad/sec.

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A unity feedback system has OLTF, G (s) = 9/s(s + 3)

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