A uniform disc of mass \[M\] and radius \[R\] is mounted on an axle su – McqOptions

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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 is
A.	\[\frac{T}{MR}\]
B.	\[\frac{MR}{T}\]
C.	\[\frac{2T}{MR}\]
D.	\[\frac{MR}{2T}\]
Answer» D. \[\frac{MR}{2T}\]

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