How do I calculate this?

Question

A track and field athlete, running on a circular track, completed 15 laps around the track in a total time of 5.3 min. Determine the angular velocity of the athlete.

 

If the athlete is running on a track 5.0 m in radius, determine the linear velocity of the athlete.

Answer 1

15 laps = 30π radians

30π radians / 5.3 min

5.66π radians / minute

 

C = 2πr

C = 10π

15 laps = 150π meters

150π meters / 5.3 min

28.3π m / min