Question

which one describes friction more accurately — " smoothness" or smoothness of contracting surfaces".? give a reason to support your answer.​

Answer 1

Answer:

smoothness of contracting surfaces.

Explanation:

Friction is a contact force and depends on the smoothness or roughness of both the surfaces not just one. If one is smooth and the other is rough then the friction experienced is comparatively less than tge one experienced when both are smooth. Also it is more than the friction experienced when both of them are smooth. So, there have to be two contacting surfaces. This is shown by the second statement. Hence, that is the answer.

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Answer 2

Explanati

i domt know the answer