Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 5 - Dynamics of Uniform Circular Motion - Focus On Concepts - Page 137: 15


(b) is correct.

Work Step by Step

At the bottom of the jump, normal force $F_N$ supports the centripetal force $F_c$ while the skier's weight $mg$ opposes it. Therefore, $$F_N-mg=F_c=\frac{mv^2}{r}$$ (b) is correct.
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