Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 6 - Plug and Chug: 27

Answer

The impulse is the change in momentum. $$ I = 0- (50 kg)(4 m/s) = -200 N \cdot s$$ (Note that units of $N \cdot s = \frac{kg \cdot m}{s}$)
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