14. A feedback system has a state-space representation

*(1) -75 === 1 y(t) = 0 3600 |x(1), where the feedback is u(t) = -Kx+r(t). The control system design specifications are: (i) the overshoot to a step input approximately P.O. 6%, and (ii) the settling time T 0.1 s. A state variable feedback gain matrix which satisfies the specifications is: a. K=10 200 b. K = [6 3600] c. K = 3600 10 d. K = 100 40