While driving down a country road at 25.0 m/s, you must slam on your breaks when you see a deer in the headlights. Luckily, you decelerate to a stop in 8.70 5. If your wheels have a radius of 40.0 cm, then the magnitude of the wheel's angular acceleration is a = _______ radisz. (Note: Recall that at = %.) [3 pts. for calculations.)