Question

rolling friction is _______than the sliding friction ​

Answer 1

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Rolling friction is LESS than the sliding friction.

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. If there is no surface contact then the friction is very less.