Which type of surfaces produce (a) least friction, and (b) too much friction ?

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Solution

The force that opposes the relative motion of a body over the surface of another body is called force of friction.
It depends on the nature of the surface in contact of one body with the other.
If a surface is very smooth then the surface provides the least friction to the objects placed on it.
If the surface is very rough then the friction provides by the surface is maximum.
Thus,
a) Smooth surface produces the least friction.
b) Rough surface produces too much friction.

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