A 52-kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched; she makes 2.0 turns each second. The distance from one hand to the other is 1.50 m. Biometric measurements indicate that each hand typically makes up about 1.25% of body weight.
(a) Draw a free-body diagram of one of the skater’s hands.
(b) What horizontal force must her wrist exert on her hand?
(c) Express the force in part
(b) as a multiple of the weight of her hand.
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