Answer
$4 m/s^2$
Work Step by Step
While making the turn, the sprinter experiences centripetal acceleration. Therefore, his acceleration is $a_{c} = \frac{v^2}{r} = (10)^2/25 = 4 m/s^2$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 4 - Motion in Two and Three Dimensions - Problems - Page 88: 62
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