Answer
Please see the work below.
Work Step by Step
We can find the required force as:
$F=v\frac{dm}{dt}$
We plug in the known values to obtain:
$F=(2.0)(450)$
$F=900N$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 4 - Exercises and Problems - Page 69: 64
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