
Appendix
B
Useful Friction
Coefficients
his appendix provides a table of useful static and dynamic friction values for
Tmaterials used in games. Both static and dynamic values are given for complete-
ness; if you are using only one friction coefficient, then you can average these, or use
the dynamic value for both. Friction is discussed in Chapter 15.
Static Dynamic
Materials Friction Friction
Wooden crate on concrete 0.5 0.4
Wooden crate on ice 0.2 0.1
Glass on ice 0.1 0.03
Glass on g lass 0.95 0.4
Metal on metal 0.6 0.4
Lubricated metal on metal 0.1 0.05
Rubber on concrete 1.0 0.8
Wet rubber on concrete 0.7 0.5
Performance race tire on c oncrete 1.5 1.0
Velcro ...