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|5th August 2009, 14:15||#31|
Join Date: Jan 2008
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The grip of tyres is not due to coefficient of static friction but coefficient of adhesive friction, which is dependent on the effective surface in contact unlike static friction. But if it was a tyre made of non-deformable material such as wood or steel then the grip would depend on the coefficient of static friction alone. In that case the grip would be independent of whether the tyre was grooved or not.
Hope that clarifies!
|5th August 2009, 15:26||#33|
Senior - BHPian
Join Date: Feb 2004
Location: Hubli - Karnata
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U had not taken into account the AOA and COD of varying surfaces with identical surface areas.
So just as in this case, traction is also not entirely dependant on contact area.
This is similar to driving a car with 5 star safety ratings, that were tested under ideal conditions in a lab at a specific vehicle speed. For all you know, you might have a small crash but a metal/glass part from the other car might fly in through the window and hit you.
All these lab tests are only applicable under certain circumstances.
Last edited by Shan2nu : 5th August 2009 at 15:42.
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