1. The problem statement, all variables and given/known data A race car starts from rest on a circular track of radius 400m. The car's speed increases at the constant rate of .5m/s^2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, determine a) the speed of the race car, b) the distance traveled, and c) the elapsed time. 2. Relevant equations centripetial accel. =rw^2 tangential accel.= r(alpha) 3. The attempt at a solution Hmm.. I'm a little bit confused at how to find the point where the two accelerations are the same. Well first I made the equations equal to each other and I tried solving for (t) but it seems like everything just cancels out except theta... Another question, have you every been in a situation where you never understood anything that your class learned? How did you over come that? I mean I've listened to my teacher, read books and internet stuff, but I can't seem to get some facts straight no matter what. What did you do when you were totally stuck? I mean you didn't understand anything? Thanks!