College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A runner travels 1.5 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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Transcribed Image Text:A runner travels 1.5 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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