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The ____________ friction is due to rolling motion between the two surfaces.

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The ____________ friction is due to rolling motion between the two surfaces.

(a) rolling

(b) hydrodynamic friction

(c) partial-film

(d) none of the mentioned

The question was posed to me in unit test.

Question is from Mechanical Friction in division Engine Friction and Lubrication of IC Engine

1 Answer

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by (65.4k points)

The correct answer is:

(a) rolling

Rolling friction is the friction that arises from the rolling motion between two surfaces. It is typically lower than sliding friction, as it involves rolling elements that reduce resistance, making it efficient for applications like ball and roller bearings.

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