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Hyperphysics: Centripetal Force Feature Summary

Physics in Your World
Hyperphysics: Centripetal Force
This motorcycle's path is bent into a curve by 1) the force of friction, parallel to the road's surface, between the road and tires, and 2) the force perpendicular to the road's surface that the road exerts on the tires (assuming the track is banked--if the track is horizontal, friction provides the only inward force).  To see what happens when the track is vertical, see the New York Times article Defying Death (See: Wall of)....  For a summary of the physics of circular motion, take a look at Hyperphysics: Centripetal Force.

(This feature was updated on April 1, 2010.)
image credit: Darron Spohn; <a href="" target="_blank">larger image</a>
image credit: Darron Spohn; larger image
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September 1, 2008 - September 16, 2008