7. Friction, Inclines, Systems - Part 1 of 2
7. Friction, Inclines, Systems / Inclined Planes with Friction / Problem 10
As shown in the figure, a bar is welded to a vertical hoop of diameter 0.50 m between points A and B located on the rim. B is the lowest point of the rim. The bar makes an angle θ with the line joining the center of the hoop O and B. A small box placed on A can slide from rest on this frictionless bar. Determine the time required for the box to slide from point A to point B.

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Inclined Planes with Friction