A car traveling at 30 m/s undergoes a constant negative acceleration of magnitude 2 m/s^2 when the brakes are?

A car traveling at 30 m/s undergoes a constant negative acceleration of magnitude 2 m/s^2 when the brakes are applied. How many revolutions does each tire make before the car comes to a stop, uming that the car does not skid and that the tires have radii of .300 meters?