Answer
100 feet
Work Step by Step
$v=\sqrt {2gh}$
$80=\sqrt {2*32h}$
$80^2=(\sqrt {2*32h})^2$
$6400 = 64h$
$6400/64=64h/64$
$100 = h$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.6 - Radical Equations and Problem Solving - Exercise Set - Page 731: 65
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