Answer
3.76 m/s.
Work Step by Step
Find the velocity as a function of time.
$$v=\frac{dx}{dt}=12.4-(0.135)t^2$$
Evaluate at t = 8.00 s. Note that the acceleration is not constant.
University Physics with Modern Physics (14th Edition)
by Young, Hugh D.; Freedman, Roger A.
Published by
Pearson
ISBN 10:
0321973615
ISBN 13:
978-0-32197-361-0
Chapter 2 - Motion Along a Straight Line - Problems - Exercises - Page 58: 2.8
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