QUESTION 3 (a) Figure Q3 shows the block diagram of a robtic painting arm control systern. Figure Q3: Block diagram of a robotic painting arm control system. Given that
G_(1)(s)=(5000)/((s)+1000)
and
G_(2)(s)=(1)/((s)((s)+20))
. Use the Routh-Hurwitz stability check criteria to find the value of
K_(a)
that would make the above system stable. [13]