Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 9 - For Thought and Discussion: 11

Answer

Please see the work below.

Work Step by Step

We know that it is possible to have collision without any physical contact. For example, when two proton are sent towards each other, they come very close to each other and then repel and move backwards due to electrostatic repulsion between them. In this example, the electric particles don't touch each other physically but there is an apparent collision due to the electrostatic force.
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