Answer
141 cm
Work Step by Step
Using (3.6),
the magnitude of ($-140\hat{i}-20.0\hat{j}$) is
$\sqrt{(-140cm)^{2}+(-20.0cm)^{2}}=141$ cm.
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 3 - Vectors - Problems - Page 58: 21c
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