Question

Me ollowing stat
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1.
Friction of a surface can be reduced to zero.​

Answer 1

Explanation:

No , we cannot have zero friction surfaces . Even if we use a lot of lubricants , the friction will be reduced but can never be reduced to zero because every surface will still have minor irregularities in them.

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Answer 2

Answer:

We know frictional force depends only on friction co-efficient and normal force.

Friction co-efficient depends on nature of surface of contact not area of contact..

Normal reaction is also independent of area of contact. So, we can say that friction force is independent of area of contact. So "Frictional force is proportional to the area of contact between the surfaces" is wrong statement

Explanation:

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