\renewcommand{\radius}{2.5}
\renewcommand{\Vitesse}{10}
\renewcommand\temps{0}
\begin{center}
\begin{pspicture}*(-5,-3)(5,6)
% \TrajectoireIndividuelle{angle}{date finale}
\TrajectoireIndividuelle{120}{0.7}
\TrajectoireIndividuelle{30}{0.7}
\TrajectoireIndividuelle{70}{0.7}
\TrajectoireIndividuelle{160}{0.7}
\TrajectoireIndividuelle{180}{0.7}
\TrajectoireIndividuelle{90}{0.7}
\pscircle[fillstyle=solid,fillcolor=MonGris]{\radius}
\psarcn{->}(0,0){0.75}{270}{150}
\uput[210](0.70;210){$\THETA$}
\psline(-5,-\radius)(5,-\radius)
\masselotte{0}{120}
\psdot(M)
\uput[90](M){B}
\masselotte{0}{90}
\psdot(M)
\uput[45](M){A}
\masselotte{0}{160}
\psdot(M)
\uput[270](M){C}
\pspolygon(0,0)(! 0.66 \radius\space mul 1.2 \radius\space mul)
               (!1.5 \radius\space mul 0.4 \radius\space mul neg)
\psline(! 0.66 \radius\space mul 1.2 \radius\space mul)
       (! 0.66 \radius\space mul 1.3 \radius\space mul)
\pspolygon[linearc=0.05](! 0.5 \radius\space mul 1.3 \radius\space mul)
          (! 1 \radius\space mul 1.3 \radius\space mul)
          (! 0.5 \radius\space mul 1.5 \radius\space mul)
\psline(! 0.66 \radius\space mul 1.2 \radius\space mul)
       (! 2 \radius\space mul 1.2 \radius\space mul)
\psset{linestyle=dashed}
\psline(0,-\radius)
\psline(\radius,0)
\psline(\radius;150)
\psline(! 0.66 \radius\space mul \radius\space neg)
       (! 0.66 \radius\space mul \radius\space 1.5 mul)
\uput[270](! 0.66 \radius\space mul 2 div \radius\space neg){$b$}
\end{pspicture}
\end{center}
