Vipul: Created page with '==Definition== '''Rolling resistance''' is the component of normal force between two surfaces in contact that, due to microscopic surface deformations, acts in the direction…'

2010-01-20T22:34:14Z

Created page with '==Definition== '''Rolling resistance''' is the component of normal force between two surfaces in contact that, due to microscopic surface deformations, acts in the direction…'

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==Definition==

'''Rolling resistance''' is the component of [[normal force]] between two surfaces in contact that, due to microscopic surface deformations, acts in the direction along the tangent plane to the point of contact, in a direction that opposes the motion of the two bodies against each other.

Rolling resistance occurs both when two bodies are sliding against each other and in the case of pure [[rolling]] of one body (a cylinder or sphere) against the other (a flat surface). However, in the case of sliding or slipping motion, rolling resistance is negligible compared to [[kinetic friction]], and can be ignored. In the case of rolling, since kinetic friction does not act and [[static friction]] does not oppose the rolling tendency, rolling resistance becomes the primary force that opposes the rolling tendency and eventually brings the rolling to a halt.

The magnitude of rolling resistance depends on the nature of the surfaces in contact and the magnitude of the [[normal force]]. The constant of proportionality <math>C_{RR}</math> such that the rolling resistance is <math>C_{RR}</math> times the normal force is termed the [[rolling resistance coefficient]], and its magnitude is generally less than <math>0.01</math>.

Rolling resistance - Revision history

Vipul: Created page with '==Definition== '''Rolling resistance''' is the component of normal force between two surfaces in contact that, due to microscopic surface deformations, acts in the direction…'