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a)find time constant of the closed loop system.(take R(s)=1/s and D(s))

G(s)=k/(s+10),k=20

b) find the settling time(within 2% of the final value when R(s)=1/s and D(s)=1/s

solution for part 1a

H(s)=Y(s)/R(s)=G(s)/s/1+G(s)(1/s)/s= (k/s+10)/s/((1+(k/s+10)(1/s)/s)

constant time should equal to 1/30 sec

stuck on 1b need help

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# Homework Help: Finding the settling time

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