Answer
Please see the work below.
Work Step by Step
According to law of conservation of energy
$mgh=\mu \space m\space g\space d$
This simplifies to:
$d=\frac{h}{\mu}$
We plug in the known values to obtain:
$d= \frac{7.2}{0.51}=14m$
Essential University Physics: Volume 1 (4th Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0-134-98855-8
ISBN 13:
978-0-13498-855-9
Chapter 7 - Exercises and Problems - Page 132: 61
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