A car starts from rest on a curve with a radius of 120m and accelerates at 1.0m/s^2. Through what angle will the car have traveled when the magnitude of its total acceleration is 2.0m/s^2. This one, I am really lost on how to approach it. I have tangential acceleration at 1.0m/s^2 initially and total final acceleration at 2.0m/s^2. Unless I am interpreting this question incorrectly. Also another question, does a=r(w^2) only apply to uniform-circular motion or to both uniform and non-uniform? Thank you in advance!