College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 4 - Force and Motion - Learning Path Questions and Exercises - Exercises - Page 138: 54



Work Step by Step

Mass of first block =$\frac{F}{a}=\frac{40N}{2.5m/s^{2}}=16kg$ Mass of second block =$4kg$ Combined mass$=16+4=20kg$ So, acceleration of combined mass $=\frac{40N}{20kg}=2m/s^{2}$
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