written by Trisler 32 days ago
Rating: 0
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When the surfaces are conjoined, Coulomb friction http://www.klopaj.org
becomes a very poor approximation (for example, Scotch tape resists sliding even when there is no normal force, or a http://www.flij.org
negative normal force). In this case, the frictional force may depend strongly on the area of contact. Some drag racing tires are adhesive in this way.
written by Helling 31 days ago
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Speedometers are not totally accurate, and most speedometers have tolerances of some 10% plus or minus due to wear on http://www.tablic.info
tires as it occurs. Additional sources of error are tire diameter variations due to temperature, pressure, vehicle load, and nominal tire size.
Comments
When the surfaces are conjoined, Coulomb friction http://www.klopaj.org becomes a very poor approximation (for example, Scotch tape resists sliding even when there is no normal force, or a http://www.flij.org negative normal force). In this case, the frictional force may depend strongly on the area of contact. Some drag racing tires are adhesive in this way.
Speedometers are not totally accurate, and most speedometers have tolerances of some 10% plus or minus due to wear on http://www.tablic.info tires as it occurs. Additional sources of error are tire diameter variations due to temperature, pressure, vehicle load, and nominal tire size.