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cloveb cloveb
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Posts: 782
7 years ago
A figure skater is in a position where he spins once in 1.8 seconds. If he pulls his arms and legs in so that his rotational inertia is reduced by one half, how long does it take for him to spin one time?

(1) 0.90 s (2) 3.6 s (3) 1.8 s (4) 2.7 s (5) None of these.

PHY2053, Summer 2012 Exam
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