What is rolling friction? What is the need of converting sliding friction into rolling friction?

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Solution

The kind of friction acting between the surface of a rolling body and the surface on which the body is rolling is called rolling friction. For example: The friction between a rolling cylinder and the floor. The friction between the bicycle tire and the road.

rolling friction is much less than compared to sliding friction So it will reduce wear and tear.

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Similar questions

Ball bearing is a device which usually converts:
(a) rolling friction into sliding friction
(b) static friction into sliding friction
(c) sliding friction into rolling friction
(d) rolling friction into static friction

Since rolling friction is less than sliding friction, sliding friction is replaced with rolling friction in most machines using ball bearings.

What is sliding friction and rolling friction.

Which of the following statements is incorrect?
(a) static friction is greater than rolling friction
(b) sliding friction is less than rolling friction
(c) rolling friction is less than static friction
(d) static friction is greater than sliding friction

Q. Rolling friction is ______ sliding friction.