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An auto race is held on a circular track. A car completes one lap in a time of 19.2 s, with an average tangential speed of 39.8
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Traveling at a speed of 16.3 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The
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(b) radius=tangential speed/angular speed. 39.8/.327=121.7m
Oops!! Find the following...... (a) the average angular speed (b) the radius of the track (a) is 2pi / 19.2s = .327 rad/s (b) .......
