A race car travels a complete lap on a circular track of radius 500 m in 50

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A race car travels a complete lap on a circular track of radius 500 m in 50 s.
(a) The average velocity of the race car is (1) zero, (2) 100 m/s, (3) 200 m/s, (4) none of the preceding. Why?
(b) What is the average speed of the race car?
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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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