Answer
$D_{app} = vt~sin~\theta$
Work Step by Step
In time $t$, the knot travels a distance of $vt$
We can use trigonometry to find an expression for $D_{app}$:
$\frac{D_{app}}{vt} = sin~\theta$
$D_{app} = vt~sin~\theta$
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 37 - Relativity - Problems - Page 1149: 63a
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