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For a particular unity feedback system G(S)=242(S+5)S(S+1)(S2+5S+121)
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Arranging the above equation in time constant form,

G(S)H(S)=242x5(1+S/5)S(1+S)(1+5121S+S21121121

=10(1+S/5)S(1+S)(1+0.041S+S21121)

System consists of quadratic pole

Comparing the denominator (S2+5S+121) with the denominator of standard equation

S2+2ξwnS+w2n,

w2n=121

wn=11 rad/sec

2ξwn=5

ξ=5(2x11)

ξ=0.2

The factors are:

Constant k=10

1 pole at the origin, 1S, …

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