A second-order system has a transfer function given by $$G\left( s \right) = \frac{{25}}{{{s^2} + 8s + 25}}.$$ If the system, initially at rest, is subjected to a unit step input at t = 0. the second peak in the response will occur at
A. $$\pi {\text{ sec}}$$
B. $$\frac{\pi }{3}{\text{sec}}$$
C. $$\frac{{2\pi }}{3}{\text{sec}}$$
D. $$\frac{\pi }{2}{\text{sec}}$$
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Control Systems
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