Pictures taken from **Transworld
Snowboarding Magazine Vol.16**

**The basic idea behind snowboarding is, of course, to be able to stand up
and travel down the mountain without falling. The acceleration of a snowboarder
primarily depends upon the slope of the mountain. However, in order to understand
terms like acceleration and velocity, a person first must understand the importance
of the coefficient of friction, which depends upon the amount of wax on the
board, the more smoothly applied wax, the less the coefficient of friction
will be, which means a greater velocity, and the type of snow- powder, wet
snow, dry snow, icy snow. Overall, the kinetic coefficient of friction (Fk=Uk*n)
varies from about .01 with a well waxed snowboard in icy conditions to .11
with a poorly waxed snowboard in wet snow. Therefore, the average kinetic
coefficient of friction for a snowboard on the snow is approximately .06.
The static coefficient of friction, Fs < or = Us*n , is the magnitude of
the force of friction between any two stationary surfaces. Once the static
force overcomes the static coefficient of friction multiplied by the normal
force, the object will begin to move. For a snowboard on snow, the average
coefficient of static friction is between .01 and .15 so it averages to be
approximately .08. When on a sloped part of the mountain, the downward
force will be great enough to overcome the forces of static and kinetic friction
and the boarder will travel downhill. To analyze the acceleration, a person
must analyze both the horizontal and vertical forces. Using Newton's second
law, F = m (mass) * a (acceleration), a person can analyze the snowboarder's
acceleration. In the horizontal direction, Fx = m*Ax = m*g*sin (theta)**

** Snowboard
Acceleration**