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  1. JasonS

    5 ton Air Pack on a Deuce?

    I remember arguing your point with my college physics proffessor nearly 20 years ago. It is counterintuitive but correct that area is not part of the formula for calculating friction which is: fk = ukN where fk is the kinetic friction force uk is is the coefficient of kinetic friction...
  2. JasonS

    5 ton Air Pack on a Deuce?

    Brake stopping power (ie. friction) is determined by the force and the coefficient of friction between the lining material and the drum or rotor. Area is not part of the friction equation. Obviously, the larger the diameter, the higher the surface speed and the higher the braking force.
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