function graphVelRatio(ka)
N = length(ka);
velRatio = NaN(1,N);

for n = 1:N
    velRatio(n) = integrateRG2(ka(n),100,[0,0]);
end
graphToPDF('trajectory.pdf',4,4);
figure(10)
plot(ka,velRatio)
texText('$ka$','x')
texText('$v_d/v_p$','y')
graphToPDF('velRatio.pdf',4,3)
end