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单词 rolling friction
释义
rolling friction

Physics
  • Friction between a rolling wheel and the plane surface on which it is rotating. As a result of any small distortions of the two surfaces, there is a frictional force with a component, F1, that opposes the motion. If N is the normal force, Fr=Nμ‎r, where μ‎r is called the coefficient of rolling friction.


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