Question

can the coefficient of friction be greter then one ?​

Answer 1

Answer:

Yes.

When the contact surface is heavily polished then frictional force increases due to the increase in the adhesive forces between the molecules. In such case co-effiecient of friction will be greater than one

Explanation:

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Answer 2

Answer:-

A coefficient of friction that is more than one just means that friction is stronger than the normal force. An object such as silicon rubber for example, can have a coefficient of friction much greater than one.