Solutions for 2nd Order Systems x()◆ )+250ny+o元y=u(t) x(0) 0<<1 =1 g>1 0 5>1 Overdamped 5=1 Critically damped 0<<1 UnderdampedSolutions for 2nd Order Systems 2 2 () n n   y y y ut      1  1 0   1 Overdamped Critically damped Underdamped