Conceptual Physics (12th Edition)

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

Chapter 8 - Think and Explain: 87

Answer

She rotates in a circle because the normal force from the floor is pushing inward on her feet (action), toward the center of the station. Her feet press against the floor (reaction), by Newton’s third law.

Work Step by Step

In her non-inertial reference frame, the sensation of the floor pressing on her feet feels like gravity.
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