Concept explainers
A 4.0-m-diameter playground merry-go-round, with a moment of inertia of 400 kg · m2, is freely rotating with an
A. 2.0 m/s
B. 4.0 m/s
C. 5.0 m/s
D. 7.5 m/s
E. 10 m/s
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