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A uniform cylinder free to turn around a fixed axis has a string wrapped around it as shown. The string is pulled with a force F equal to the cylinders weight. What is the acceleration of the string? A. 2gB. gC. g/2D. g/4 |
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Answer» `RxxF=(1)/(2)mR^(2)prop,F=mg, alpha=(2g)/(R)` `a=Ralpha=2g` |
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