Figure 5.7 illustrates the unit step response of a second-order control system. Determine its approximate closed-loop transfer function.

1) \(\frac{240}{s^{2}+136 s+240}\)
2) \(\frac{240^{2}}{s^{2}+136 s+240^{2}}\)
3) \(\frac{336}{s^{2}+240 s+336}\)
4) \(\frac{336^{2}}{s^{2}+240 s+336^{2}}\)

Figure 5.7

Transcribed Image Text:

c(t) 1.3 1.00 t 0.01