Race-track turns are often "banked" (tilted inward) so that cars can take them at high speed without skidding. consider a circular track 2km in length banked at an angle of 20o , and just for fun suppose the track is covered in ice (after a bad storm, lets say). with what speed does a car have to drive in order to make it around the track?
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Race-track turns are often "banked" (tilted inward) so that cars can take them at high speed without...
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