# Coefficient of Kinetic Friction Question

by wilson_chem90
Tags: coefficient, friction, kinetic
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 P: 137 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
 HW Helper P: 5,341 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.
 P: 137 oh okay, so its the same format just static friction?
HW Helper
P: 5,341
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.

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