Answer
$9$ times
Work Step by Step
Gravitational acceleration on the strip is constant, and by $h=h_0-0.5gt^2$, if time is tripled, the distance traveled is multiplied by $9 = 3^2$, so the answer is $9$.
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 2 - Motion Along a Straight Line - Problems - Page 38: 83c
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