Exam: Measuring the Coefficient of Friction

[Faka]

Hi everybody.
I am going to exam on Monday. I would like to make a experiment on how to measure the coefficient of friction.

I know, that I can find the mu(s), by taking the tan to the angle α.

μs = tan(α).

Is there somebody, who has some others ideas how to measure that? Somebody, who have done the experiment before. Maybe done it in a different way. It shall be university level.

 

[Delphi51]

I don't understand what experiment you are thinking of.
The usual way to measure μ is to use a force measuring device (spring scale?) to pull on an object. Knowing the force and the mass, you can figure out the μ. No angles involved if you pull horizontally.