Conceptual Physics (12th Edition)

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

Chapter 8 - Think and Do - Page 154: 33

Answer

The CG is vertically below the point of support, where the matchstick contacts the rim of the glass.

Work Step by Step

Try it and see. The principles are discussed on pages 140-145.
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