Answer
$2m/s^{2}$
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 $=\frac{40N}{20kg}=2m/s^{2}$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
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
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