#### Answer

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#### 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:
$d= \frac{7.2}{0.51}=14m$

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Published by
Pearson

ISBN 10:
0321993721

ISBN 13:
978-0-32199-372-4

Please see the work below.

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