Answer
When you make a sudden stop, your velocity changes in a short time interval, which means a large acceleration. By Newton’s second law, this requires a large net force. Experiencing that force is what hurts you.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 4 - Think and Discuss - Page 73: 109
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