To a unity feedback system whose open-loop transfer function is \(G\left( s \right) = \frac{{{K_1}\left( {2s + 1} \right)}}{{s\left( {4s + 1} \right){{\left( {s + 1} \right)}^2}}},\) input R(t) = 1 + 5t is applied. It is required that steady-state error should be less than or equal to 0.1. The minimum value of K1 to satisfy this condition is:

To a unity feedback system whose open-loop transfer function is \(G\le

1.	To a unity feedback system whose open-loop transfer function is \(G\left( s \right) = \frac{{{K_1}\left( {2s + 1} \right)}}{{s\left( {4s + 1} \right){{\left( {s + 1} \right)}^2}}},\) input R(t) = 1 + 5t is applied. It is required that steady-state error should be less than or equal to 0.1. The minimum value of K1 to satisfy this condition is:
A.	K1 ≥ 5
B.	K1 ≥ 20
C.	K1 ≥ 50
D.	K1 ≥ 10
Answer» D. K1 ≥ 10