Answer
$F = 7.5~N$
Work Step by Step
The impulse applied to the sled is equal to the sled's change in momentum:
$F~t = mv$
$F = \frac{mv}{t}$
$F = \frac{(50.0~kg)(3.0~m/s)}{20.0~s}$
$F = 7.5~N$
College Physics (4th Edition)
by Giambattista, Alan; Richardson, Betty; Richardson, Robert
Published by
McGraw-Hill Education
ISBN 10:
0073512141
ISBN 13:
978-0-07351-214-3
Chapter 7 - Problems - Page 262: 12
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