Question

Explain why sliding friction is less than static friction.​

Answer 1

The friction between the two surfaces is because of the interlocking of the irregularities of the two surfaces. During sliding, contact points do not get enough time to get interlocked properly. Therefore, less friction. ... This explains why sliding friction is less than static friction.

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Answer 2

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Irregularities present on the two surfaces in contact interlock with one another and force of friction arises. The sliding objects get less time to interlock into the contact points on the floor. Thus, interlocking is not strong so it is easier to move an object already in motion to get it started. Thus, sliding friction is less than static friction.

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