An amateur race driver is driving her car at a constant speed of 40.0 m/s on a circular track with radius of 255
(a) What is the angular speed (in rad/s) of the car? rad/s
(b) What are the magnitude (in m/s²) and direction of the car's acceleration? magnitude m/s2 direction toward the center of the track, parallel to the velocity, away from the center of the track, straight downward