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**1. a) A X kg toy car accelerates at constant rate from V**

- α, the magnitude of the angular acceleration of the car.

- t, the time it took to reach the final speed

_{o}m/s to V_{f}m/s in C revolutions while going around a circular track of radius R cm. Find:- α, the magnitude of the angular acceleration of the car.

- t, the time it took to reach the final speed

**2. To calculate the angular acceleration, I tried velocity over radius, V**

_{o}/R and V_{f}/R to get delta W(omega); and then tried using the formula W_{f}^{2}= W_{o}^{2}+ 2*alpha*(C*2*Pi), and solved for alpha, but got the wrong answer. I do not know how to get time without acceleration. Any help would be appreciated.