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A uniform disc of mass `M` and radius `R` is mounted on an axle supported in frictionless bearings. A light cord is wrapped around the rim of the disc and a steady downward pull `T` is exerted on the cord. The angular acceleration of the disc isA. `(T)/(MR)`B. `(MR)/(T)`C. `(2T)/(MR)`D. `(MR)/(2T)` |
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Answer» Correct Answer - C `TR=(MR^(2))/(2) prop rArr prop = (2T)/(MR)` |
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