Summary: technical proof technical proof
Rolling resistance, spin resistance, and "ball turn"
"The Illustrated Principles of Pool and Billiards"
by David G. Alciatore, PhD, PE ("Dr. Dave")
originally posted: 1/14/2008 last revision: 2/1/2008
Here are the forces acting on a rolling ball:
m: ball mass m 6 oz
I: ball mass moment of inertia
R: ball radius R 1.125 in
r: coefficient of rolling resistance
The translational equation of motion is: