- #71
ehild
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dreamLord said:In any uniform circular motion, the force acts perpendicular to the instantaneous direction of motion, which is what is happening here (at the time when elongation is maximum). My question is - can we show that the spring force, which pulls the disks inward as you said, does not change the magnitude of the velocity, but only it's direction, like in circular motion? I'm not saying that the force switches off - I'm asking if the force is such that it only changes the direction of the velocity vector.
I think it depends on the parameters, k, Vo, m, and lo. It can happen that the spring force provides the centripetal force for rotation with constant angular speed, but it can go on both with rotation and vibration. We should examine it ...
ehild