A runner travels I.5 laps around a circular track in a time of 50 s. The diameter of the track is 40 m and its circumference is 126 m. Find (a) the average speed of the runner and (b) the magnitude of the runner's average velocity. Be careful here; average speed depends on the total distance traveled, whereas average velocity depends on the displacement at the end of the particular journey.

A runner travels I.5 laps around a circular track in a time of 50 s. The diameter of the track is 40 m and its circumference is 126 m. Find (a) the average speed of the runner and (b) the magnitude of the runner's average velocity. Be careful here; average speed depends on the total distance traveled, whereas average velocity depends on the displacement at the end of the particular journey.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter3: Two-dimensional Kinematics

Section: Chapter Questions

Problem 1PE: Find the following for path A in Figure 3.54: (a) the total distance traveled, and (b) the magnitude...

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A runner travels I.5 laps around a circular track in a time of 50 s. The diameter of the track is 40 m and its
circumference is 126 m. Find (a) the average speed of the runner and (b) the magnitude of the runner's
average velocity. Be careful here; average speed depends on the total distance traveled, whereas average
velocity depends on the displacement at the end of the particular journey.

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