Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 5 - Newton's Laws of Motion - Problems and Conceptual Exercises: 15

Answer

(a) Greater than. (b) Choice II.

Work Step by Step

According to Newton's Third Law, all forces cause an equal and opposite force. Since the forces are the same and $F=ma$, the acceleration must be equal to $a=\frac{F}{m}$. Therefore, as mass increases and force remains the same, the acceleration decreases. Since the car has less mass than the truck, the car will have larger acceleration.
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