.. raw:: latex

   %IMPORTANTMARKER

   \AddToHook{cmd/section/before}{\cleardoublepage}

   \setcounter{secnumdepth}{4}

#######
Contact
#######

.. toctree::
   :maxdepth: 1

   contact/newton_cradle
   contact/bullet_collision
   contact/analytic_planes
   contact/curved_surface_friction
   contact/plate_indentation
   contact/ball_bearing_pull
