When we increase the friction
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- increasing the roughness of the surface.
- increasing the mass of the object which is in motion
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- With just the mass and the sliding angle, I can get both the frictional force and the normal force. How can I calculate the coefficient of friction? What if I made a plot of friction vs. normal force for the same surface but with different masses? If the normal force and the frictional force are really proportional (like in the model above) then this data should be linear with the slope of the line being the coefficient of friction.
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