An Ice Skater Spins at 2

question 31

Multiple Choice

An ice skater spins at 2.5 rev/s when his arms are extended.He draws his arms in and spins at 6.0 rev/s.By what factor does his moment of inertia change in the process?

• A)2.4
• B)1.0
• C)0.42
• D)0.12

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