Quote:
Originally Posted by Andrew Lawrence
Sorry if this seems kinda out there, but it's Centripetal Force that causes the rubber to move outwards tangent to the direction of rotation. Centrifugal Force does not exist.  |
If you look at it from the point of view of the non-spinning outside world, Centripetal Force causes the edge of the wheel hub to move "inwards" away from the rubber, which tries to continue in a straight line.
If you look at it from the point of view of the spinning wheel, Centrifugal Force is real and strong.
http://www.youtube.com/watch?v=-LDxOSz80pI
http://xkcd.com/123/