An auto race takes place on a circular track. A car completes one lap in a time of 22.8 s, with an average tangential speed of 37.3 m/s. Find (a) the average angular speed and (b) the radius of the track.

Answer 1

ah come on
2 pi rad/22.8 s

so what is the circumference?
C = 2 pi R = 22.8s * 37.3m/s
= 850 meters around the track
so
R = 850/(2 pi)