g is the acceleration due to gravity, which is equal to 9.8 m/s2 on earth
G is the center of mass of the system (which consists of skater plus skates, which together can be treated as a rigid body)
P is the approximate contact point between the skater's blades and the ice
L is the distance between point P and point G
Fx is the horizontal contact force, with the ice, acting on the skater's blade at point P
Fy is the vertical contact force, with the ice, acting on the skater's blade at point P
R is the radius of the turn, measured from the center of the turn to the center of mass G of the system
ac is the centripetal acceleration of point G. This acceleration is in the horizontal direction and points towards the center of the turn
θ is the angle between the horizontal and the line passing through points P and G. This is the angle of "lean" (a constant)
The center of mass G has zero vertical acceleration. Therefore, the forces in the vertical direction acting on the system must sum to zero. Mathematically this can be written as
g is the acceleration due to gravity, which is equal to 9.8 m/s2 on earth G is the center of mass of the system (which consists of skater plus skates, which together can be treated as a rigid body) P is the approximate contact point between the skater's blades and the iceL is the distance between point P and point G Fx is the horizontal contact force, with the ice, acting on the skater's blade at point P Fy is the vertical contact force, with the ice, acting on the skater's blade at point P R is the radius of the turn, measured from the center of the turn to the center of mass G of the system ac is the centripetal acceleration of point G. This acceleration is in the horizontal direction and points towards the center of the turn θ is the angle between the horizontal and the line passing through points P and G. This is the angle of "lean" (a constant) The center of mass G has zero vertical acceleration. Therefore, the forces in the vertical direction acting on the system must sum to zero. Mathematically this can be written as
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