There are many different aspects of ski waxing that are related to different parts of physics.

    First and foremost, one focuses on reducing the friction between the bottom of the ski and the snow. This is accomplished by applying the right temperature wax and factoring in the moisture content of snow and how clean it is.
    Other than friction reduction, waxers also have to consider the electrostatic forces created by friction that slow skies.
    Lastly, the water created from the ski passing over the snow must be addressed. Often times the suction force can be much more influential than that of friction and electrostatics. If the snow is really warm, wet, or both structure is applied to shed water from the ski alleviating  the suction force.