Question: P5.20 A system is shown in Figure P5.20. (a) Determine the steady-state error for a unit step input in terms of K and K 1,

P5.20 A system is shown in Figure P5.20.

(a) Determine the steady-state error for a unit step input in terms of K and K1, where

E s( ) = − R s( ) Y s( ).

(b) Select K1, so that the steady-state error is zero.

K R(s) K Y(s) (s+5)(s +11) FIGURE P5.20 System with pregain, K.

K R(s) K Y(s) (s+5)(s +11) FIGURE P5.20 System with pregain, K.

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