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RE: Physics - Electromagnetism - Eddy Currents and Applications
very interesting topic
As the front part of the train approached the magnet, eddy currents try to generate a repulsive magnetic field, which slows down the copper's approach to the magnet. As the front part passed by, being slowed down already, the eddy currents would start generating an attractive magnetic field that tries to pull the train back again, slowing it down again.
This is what causes the inability of cars to move from the railway as the train approaches???
Haha I don't think so...
Cars usually have rubber tires which of course don't conduct electricity and so aren't affected by the rails. The inability can be explained by the non-uniform surface that the car has to drive on. The bumpy track of course makes it much more difficult for cars to move on then on a "normal" road.
But, I don't put my hand in the fire :P There still might be some effect on cars, but this effect cannot be that strong that it doesn't let cars to move on...