1. The problem statement, all variables and given/known data A car traveling on a flat (unbanked) circular track accelerates uniformly from rest with a tangential acceleration of 1.80 m/s2. The car makes it one quarter of the way around the circle before it skids off the track. Determine the coefficient of static friction between the car and track from these data. 2. Relevant equations [tex]\Delta[/tex][tex]\theta[/tex]=1.57 rad Fc = mv2/r f= Fc f=uN 3. The attempt at a solution I really don't understand how to go at this problem. I was told to find Vf, but how do you do that? Knowing only the tangential acceleration, how would I use that to find Vf. And not knowing what the radius is how do I find the centripetal force and connecting that with the normal force? Without the mass being given?