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23. A uniform spherical shell rotates about a vertical axis on frictionless bearings (Fig. 12-2 ...
23. A uniform spherical shell rotates about a vertical axis on frictionless bearings (Fig. 12-23). A light cord passes around the FIGURE 12-23. Exercise 23. equator of the shell, over a pulley, and is attached to a small object that is otherwise free to fall under the influence of gravity. What is the speed of the object after it has fallen a distance h from rest?