Hi All! I've been doing some research in an attempt to uncover the proportionality between usable traction, which is defined as the the product of coefficient of static friction and the normal force, and the wheel slip. Given the nature of the the equation for usable traction, I expected that wheel slip would decrease directly as traction went up. However, after some experimentation of my own, the proportionality is inverse. That is, Wheel slip is inversely proportional to traction. So, as you increase mass in a linear fashion I have found that wheel slip decreases in an inverse fashion. Is there anyone here who can point me in the right direction as to why traction is inversely related to wheel slip?