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**Unformatted text preview: **c slope sin m g-and the normal force is . cos slope c θ g m Using Newton’s Second Law again: slope slope k c slope c k slope c cos sin cos sin θ g θ g a a m θ g m θ g m + = = +-μ which leads to the interesting observation that the string will hang at an angle whose tangent is equal to the coefficient of kinetic friction : 40 . 22 tan ) 68 90 tan( tan string k = ° = °-° = = θ...

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