1. You are paining an inclined ceiling that makes an angle with the horizontal. The paint roller is a uniform cylinder o

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1 You Are Paining An Inclined Ceiling That Makes An Angle With The Horizontal The Paint Roller Is A Uniform Cylinder O 1 (18.08 KiB) Viewed 10 times

1. You are paining an inclined ceiling that makes an angle with the horizontal. The paint roller is a uniform cylinder of mass m and radius R. The moment of inertia about the center if mR². Using the bar attached to the roller, you apply a vertical force F and roll the cylinder up the ceiling in order to paint it. A. Does friction point up or down? Justify your answer? B. What is the cylinder's acceleration? C. Suppose the applied force was horizontal to the right instead. Would friction point up or down then? Justify your answer.