Question

How is rolling friction caused?

Answer 1

Rolling friction is the resistance to motion experienced by a body when it rolls upon another. It is much less than sliding friction for same pair of bodies. When one body rolls upon another, there is theoretically no sliding or slip between them. And if both are perfectly rigid, there is no surface of contact and then it cause

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Answer 2

Rolling friction is experienced on a body when it is put on rollers .It has been found out that rolling friction is 10 times less than dynamic friction . Thus there are many objects and machines which have rollers in it to reduce friction i.e. to reduce the workload. Hope this answer will help u........