Magnitude of the static friction force (5-1)

Question 1 of 5

Question

The magnitude of the force of static friction on an object...

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Review

The quantity $\mu_s$ in Equation 5-1b is called the $\textbf{coefficient of static friction}$ . Its value depends on the properties of both surfaces in contact; for example, $\mu_s$ has different values for steel on steel, for steel on glass, and for glass on glass. Because both $f_s$ and $n$ have units of force, Equation 5-1b tells us that $\mu_s$ must be dimensionless.