Suppose you are standing at the center of a merry-go-round that is at rest. You

Question

Suppose you are standing at the center of a merry-go-round that is at rest. You are holding a spinning bicycle wheel that has angular momentum +6 kg.m^2/s. You flip the bicycle wheel upside down. Neglect any friction or air resistance between the merry-go-round and its foundation. What happens to you and the merry-go-round? A. You start rotating with angular momentum -6 kg middot m^2/s B. You start rotating with angular momentum +6 kg middot m^2/s C. You start rotating with angular momentum -12 kg middot m^2/s D. You remain at rest E. You start rotating with angular momentum +12 kg middot m^2/s

Explanation / Answer

The net angular momentum of the total system is conserved as there is no net external torque on the total system.

(Wheel + you) angular momentum is conserved

+6+0 = -6+X

X = +12

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