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coefficient of rolling friction
(redirected from Rolling resistance)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
coefficient of rolling friction [¦kō·ə′fish·ənt əv ′rōl·iŋ ′frik·shən]
(mechanics)
The ratio of the frictional force, parallel to the surface of contact, opposing the motion of a body rolling over another, to the force, normal to the surface of contact, with which the bodies press against each other.


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Chemical and Engineering News, (C and EN) ACS' weekly newsmagazine's Senior Editor Alexander Tullo explained that rolling resistance - the friction that tires encounter when rolling - are a major factor in a vehicle's fuel economy.
In announcing the proposal in June, transportation officials said tires with lower rolling resistance and proper inflation pressure can contribute to improved fuel economy, more efficient energy use and a reduction in greenhouse gas emissions.
The impressive frugality is achieved by a number of BlueMotion modifications including revised gear ratios, low rolling resistance tyres, a Start/Stop function and regenerative braking.
 
 
 
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