G2 = [1 3.4 5 10];

wi = G2*(0.4)*Kt*Ktach/J;



for i = 1:4

    d = conv([1/wi(i) 1],[1 0]);

    L0 = tf(1/6.75*Kp/Ktach,d);

    

    subplot(220+i);

    rlocus(L0);

    T = sprintf('Root locus for G2 = %d',G2(i));

    title(T);

end





