> You can brake with more than 0.67 g. Of course you can but we're not talking about G-forces. That's a coefficient of friction [0], a dimensionless measure. I

> You can brake with more than 0.67 g. Of course you can but we're not talking about G-forces. That's a coefficient of friction [0], a dimensionless measure. It's determined empirically literally by rubbing things together and is then used to calculate the friction force between different materials. [0] https://en.wikipedia.org/wiki/Friction#Coefficient_of_friction https://en.wikipedia.org/wiki/Friction#Coefficient_of_fricti...