ffaholic Posted November 15, 2015 Report Share Posted November 15, 2015 does anyone know how to find the coefficient of kinetic friction using the applied force of an inclined plane? Reply Link to post Share on other sites More sharing options...
Gaby Posted November 15, 2015 Report Share Posted November 15, 2015 Please don't post two identical topics in two places on the forum. I removed your other one Reply Link to post Share on other sites More sharing options...
ffaholic Posted November 15, 2015 Author Report Share Posted November 15, 2015 ah sorry about that Reply Link to post Share on other sites More sharing options...
kw0573 Posted November 15, 2015 Report Share Posted November 15, 2015 This website concisely explains why the coefficient of friction is tan θ, where θ is the angle between the ramp and horizontalhttp://physics.bu.edu/~duffy/semester1/c6_measuremus.htmlFor static friction, θ is the minimal angle that the allows an object to slip down.For kinetic friction, θ is the minimal angle that allows the object to move at a constant non-zero speed.In practice, it is typically easier to determine coefficient of static friction but if the ramp is long enough you can adjust the angle until some motion sensor tells you that the object is moving at a constant speed. In physics problems that you see in your textbook, almost always coefficient of kinetic friction is easier to find because you are often told that block is moving at constant speed. Reply Link to post Share on other sites More sharing options...
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