Object A sits at the outer edge (rim) of a merry-go-round, and object B sits halfway between the rim and the axis of rotation. The merry-go-round makes a complete revolution once every thirty seconds. The magnitude of the angular velocity of Object B is
A. The same as the magnitude of the angular velocity of Object A.
B. Half the magnitude of the angular velocity of Object A.
C. twice the the magnitude of the angular velocity of Object A .
D. impossible to determine.
A, because in both cases the answer is 360 degrees in 30 seconds.
It is A, because both objects are fixed with respect to the rotating platform.
The meta-question here is: Is this a good test question to find out whether someone has understood the concept of angular velocity. As it is often the case, there are some hidden assumptions in the question that raised the discussion here. But as a homework question, I rate it as well-posed. It triggers some thinking. But unfortunately not for every student. Meta-lol...
Robert. It is not wise of you to ask ResearchGate to solve your homework problems; you can get into trouble with your university for attempts to cheat.
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