Answer
Please see the work below.
Work Step by Step
We know that the acceleration of the elevator is equal to g:
As $a=\frac{v}{t}$
This can be rearranged as
$t=\frac{v}{a}$
$t=\frac{v}{g}$ because $a=g$
$t=\frac{5.2}{9.8}=0.53s$
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 4 - Exercises and Problems - Page 71: 49
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