Q.

Is it true that rolling friction is less than sliding friction?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
Rolling friction is produced due to the rolling of the object on a surface while sliding friction is produced due rubbing of two surfaces. The area of contact in rolling friction is less compared to sliding friction. Also, the lesser the area of contact, the lesser the friction. Hence, “rolling friction is less than sliding friction.”
Rolling Friction - Definition, Examples, Coefficient, Causes, Formula 
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