Answer
d.
Work Step by Step
We simplify the equation for period to find the spring constant and obtain:
$k =\frac{4\pi^2m}{T^2}=\frac{4\pi^2(80)}{(2)^2}=80\pi^2$
Option d is the correct answer.
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 13 - Exercises and Problems - Page 249: 89
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