Conceptual Physics (12th Edition)

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

Chapter 5 - Think and Explain: 48


When you push the car, you exert a force on the car. It is true that there is a reaction force of the car pushing back on you. However, that reaction force is on you, not on the car. To have their effects "cancel", two forces not only have to be equal and opposite, but they have to act on the same object. That is not the case here.
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