P2.12 For the open-loop control system described by the block diagram shown in Figure P2.12, determine...

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P2.12 For the open-loop control system described by the block diagram shown in Figure P2.12, determine the value of K such that y(t) 1 as to when r(t) is a unit step input. Assume zero initial conditions. Controller Process 1 R(s)- K Y(s) s+20 FIGURE P2.12 Open-loop control system. P2.12 For the open-loop control system described by the block diagram shown in Figure P2.12, determine the value of K such that y(t) 1 as to when r(t) is a unit step input. Assume zero initial conditions. Controller Process 1 R(s)- K Y(s) s+20 FIGURE P2.12 Open-loop control system.