A runner runs around a circular track. He completes one lap at a time of t = 389 s at a constant speed of v = 4.4 m/s. t = 389 s v = 4.4 m/s What is the radius, r in meters, of the track? What was the runners centripetal acceleration, ac in m/s2, during the run?

A runner runs around a circular track. He completes one lap at a time of t = 389 s at a constant speed of v = 4.4 m/s. t = 389 s v = 4.4 m/s What is the radius, r in meters, of the track? What was the runners centripetal acceleration, ac in m/s2, during the run?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section6.2: Circular Motion

Problem 13PP

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Question

A runner runs around a circular track. He completes one lap at a time of t = 389 s at a constant speed of v = 4.4 m/s.

t = 389 s
v = 4.4 m/s

What is the radius, r in meters, of the track?
What was the runners centripetal acceleration, a_c in m/s², during the run?

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