## Coefficient of Kinetic Friction Question

1. If the acceleration of a pair of boxes has a magnitude of 2.5m/s^2, determine the smallest coefficient of friction between the boxes that will prevent slippage.

2. Relevant equations
F = ma
Fk = ukFn
Fw = mg

3. The attempt at a solution

ma = uk mg(Fn)
a = uk g
a/g = uk
2.5m/s^2 / 9.8m/s^2 = uk
uk = 0.25

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 Recognitions: Homework Help Since you don't want it to slip, it's really the coefficient of static friction you are interested in, but as to your solution, that looks like the right method.
 oh okay, so its the same format just static friction?

Recognitions:
Homework Help

## Coefficient of Kinetic Friction Question

 Quote by wilson_chem90 oh okay, so its the same format just static friction?
Correct.

μs not μk

No big deal.