Extracted text: 3. As a car starts accelerating ( from rest ) along a straight road at a rate of 2.4 m/s², each of its tires gains an angular acceleration of 6.86 rad/s². Calculate (a) the radius of its tires, (b) the angular speed of every particle of the tires after 3.0s, and (c) the angle every particle of its tires travels during the 3.0-second period.