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Old 2002-10-12, 05:03 PM   #32
Join Date: Feb 2002
Location: Bethlehem, Pa
Posts: 274
Klaas, you are forgetting that you no longer have an inertial reference frame when you ride in a circle. Although you are riding in a circle at a constant"speed," you are not riding at a constant "velocity". That is, there is always an acceleration towards the center of the circle which is keeps the force in the lean direction (couple about the x axis) . try the experiment again, but this time, spin the wheel and begin turning your self around in place while the tire is spinning. You will see once again the the uni tries to twist to turn into the circle.
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