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A skater spins with angular velocity of 12 rad/s with his arms extended. How fast will...

A skater spins with angular velocity of 12 rad/s with his arms extended. How fast will he spin with his arms byhis sides? Treat the skater’s body as a uniform cylinder of radius R = (your student number) cm; approximate his armsas uniform rods of length L = 40 cm and mass m = 4.5 kg. His total mass excluding arms is M = 80 kg.

Student number is 9

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