1.

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))`

Answer» Correct Answer - C
`TR=(MR^(2))/(2)alpha,alpha=((2T)/(MR))`


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