In Example 10.8.3 the steady-state error for a unit-ramp command is -4/KI. For the gains computed in that example, this error is 1 /1000. We want to see if we can make this error smaller by increasing KI. Using the values given for Kp and Kd in that example, obtain a root locus plot with K1 as the variable. Discuss what happens to the damping ratio and time constant of the dominant root as K1 is increased.