Consider a second order all-pole transfer function model, if the desired settling time(5%) is 0.60 sec and the desired damping ratio 0.707, where should the poles be located in s-plane?

Consider a second order all-pole transfer function model, if the desir

1.	Consider a second order all-pole transfer function model, if the desired settling time(5%) is 0.60 sec and the desired damping ratio 0.707, where should the poles be located in s-plane?
A.	-5+j4 2
B.	-5+j5
C.	-4+j5 2
D.	-4+j7
Answer» C. -4+j5 2