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Physics
Classical Physics
Mechanics
Bug walking around the perimeter of a lazy susan (hypothetical)
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[QUOTE="crudux_cruo, post: 6522339, member: 691199"] Bug is on lazy susan, lazy susan is on the bearings. For added context, this is a lazy susan (a rotating tray, or turntable) [ATTACH type="full" alt="turntable.jpeg"]286914[/ATTACH] EDIT: The torque from friction on the bug is the same as the torque from friction on the table, which would have been obvious earlier if I thought about them for more than five seconds and realized they were third law pairs internal to a system. So assuming I am correct in my line of thought, the sum of the change in momentum of the system would be zero. This seems pretty obvious since internal forces cannot change the momentum of a system, so I think I just need to work on my understanding of internal energy and chemical potential energy (like the gas in a car, or muscular contractions) as they relate to a system. Just leaving this edit for posterity, in the event someone thinks they spot my misconception(s) here. [/QUOTE]
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Forums
Physics
Classical Physics
Mechanics
Bug walking around the perimeter of a lazy susan (hypothetical)
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