Answer
(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.
Physics (10th Edition)
by Young, David; Stadler, Shane
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
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