How do you find the coefficient of kinetic friction
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How do you find the coefficient of kinetic friction

[From: ] [author: ] [Date: 12-10-07] [Hit: ]
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A wooden block slides downs 28 degree incline with acceleration 3.85 m/s^2. How do you find the coefficient of kinetic friction?

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Fnet = Fg parallel - Ff

Fnormal = mg cos theta

ma = (mg sin theta) - mu (mg cos theta)

* note that the m's cancel out

a = g sin theta - mu g cos theta

a = 3.85
g = 9.81
theta = 28 deg

solve for mu
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