Answer
$(a)\space 147\space km$
$(b)\space 47.9\space km$
Work Step by Step
(a) The east component $=Acos\theta=(155\space km)cos18^{\circ}=147\space km$
(b) The north component $=Asin\theta=(155\space km)sin18^{\circ}=47.9\space km$
Physics (10th Edition)
by Young, David; Stadler, Shane
Published by
Wiley
ISBN 10:
1118486897
ISBN 13:
978-1-11848-689-4
Chapter 1 - Introduction and Mathematical Concepts - Problems - Page 24: 61
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