Answer
$v_{x}=19.2\ m/s.$
Work Step by Step
(b)
(Using the discussion in part (a))
Given $v_{x}=v_{0}\cos 40.0^{\mathrm{o}}$ remains unchanged during flight,
$v_{x}=v_{0}\cos\cos 40.0^{0}=19.2m/s.$
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 4 - Motion in Two and Three Dimensions - Problems - Page 85: 32b
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