🤓 Based on our data, we think this question is relevant for Professor Stephens' class at TEXAS.
A playground merry-go-round has a radius of 3 m and a rotational inertia of 600 kg · m2 . It is initially spinning at 0.8 rad/s when a 20 kg child starts crawling from the center toward the rim. When the child reaches the rim, what is the new angular speed of the merry-go-round? Ignore the friction force on the axle of the merry-go-round.
A. 1.1 rad/s
B. 0.73 rad/s
C. 0.8 rad/s
D. 0.62 rad/s
E. 0.89 rad/s
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Based on our data, we think this problem is relevant for Professor Stephens' class at TEXAS.