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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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
Transcribed Image Text:27. Starting at time t = 0, an object moves along a straight line with velocity in m/s given by
v(t) = 98 – 2t², where t is in seconds. When it momentarily stops its acceleration is:
А. 0
B. -4.0 m/s²
С.
-9.8 m/s²
D. -28 m/s?
E. 49 m/s?
ans: D
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