You will be presented with an object on a board and you will be told the coefficient of friction between these two surfaces. You will then have to predict the angle at which the board could be titled before the object will begin to slide. Finally, you must predict the force normal between the object and the incline at this slip angle.
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The object is presently on the board and the board is horizontal. The board will be tilted on an angle until the angle get large enough that the object begins to slide. You will predict that angle and determine the force normal on the board from the object when the board is at that angle.