College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 5 - Work and Energy - Learning Path Questions and Exercises - Multiple Choice Questions - Page 172: 20

Answer

(c) They both hit the ground at the same speed.

Work Step by Step

Even with air resistance taken into account, stone 2 passes the level of the building top at the speed $v$ - same as stone 1. Beyond this, both stones have the same trajectory and reach the ground at the same speed.
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