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## Homework Statement

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.

## Homework Equations

centripetial accel. =rw^2

tangential accel.= r(alpha)

## 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!