# How to derive velocity out of acceleration in a circular motion?

A car starts moving in a circle with a radius of 200 meters. It has a constant tangential acceleration of $1{\text{m}\over {\text{sec}}^{2}}$.

a. What is the angular acceleration?

b. What is the angular velocity of the car 10 seconds after it started to drive?

Attempt: a. If the velocity grows by 1 meter per second, then it grows by $1\over 2\pi R$ radians(?) per second and I should just convert the radians to angels.(?). As for b, I am not sure at all. I am not sure about a. either. I could really use any help or guidance.

• Although this does fit here in a technical sense, this seems a better fit for Physics to me. – davidlowryduda Apr 26 '15 at 19:37
• I never knew there was one for physics. – Meitar Apr 26 '15 at 19:39

• Is 1 the linear acceleration(I am not sure if tangential and linear are the same), and if so, then is the angular acceleration $1\over 200$? – Meitar Apr 26 '15 at 19:49