Answer
.248 seconds
Work Step by Step
We know the following equation:
$\frac{1}{2}=e^{\frac{-bt}{2m}}$
Plugging in the value for $b/2m$ and simplifying gives:
$\frac{1}{2}=e^{-2.8t} \\ t = \frac{ln(.5)}{-2.8}=\fbox{.248 seconds}$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 13 - Exercises and Problems - Page 239: 37
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