An object with a mass of #12 kg# is on a plane with an incline of # - pi/6 #. If it takes #9 N# to start pushing the object down the plane and #5 N# to keep pushing it, what are the coefficients of static and kinetic friction?

1 Answer
Sunayan S
Jul 16, 2017

Static friction coefficient is #0.08# and the dynamic is #0.04#.

Explanation:

Static friction coefficient:
![my http://notebook.](https://useruploads.socratic.org/JW2h5VqwSLqSuedW9r9J_IMG_20170716_101454_326.JPG)
Dynamic friction coefficient:
![my http://notebook.](https://useruploads.socratic.org/U7yNNTMOp0Rnla19hDgY_IMG_20170716_101511_971.JPG)
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