Answer
$v=20.5\;m/s$
Work Step by Step
The flow within pipe of flow obeys the equation of continuity:
$A_1V=A_2v$
or, $v=\frac{A_1V}{A_2}$
Substituting the given values
$v=\frac{5a\times4.1}{a}\;m/s$
or, $\boxed{v=20.5\;m/s}$
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 14 - Fluids - Problems - Page 411: 66b
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