Draw the RL diagram of the following system

$1+10\frac{(s+k)(s+3)}{s(s^2-1)}=0$A unity feedback $($negative sign$)$ control system

has an open loop transfer function as follow.

Sketch the complete RL diagram and find the

corresponding $k$ when the root loci crosses $j$

axis.

$G(s)=\frac{k}{s(1+0\mathrm{.}02s)(1+0\mathrm{.}05s)}$