question_answer

A string is wound around the rim of a mounted flywheel of mass 20 kg and radius 20 cm. A steady pull of 25 N is applied on the cord (Neglecting friction and mass of string) the angular acceleration of the wheel is:

A) \[50\text{ }{{s}^{-2}}~\]

B)               \[25\text{ }{{s}^{-2}}~\]

C) \[12.5\text{ }{{s}^{-2~}}\]      

D) \[6.25\text{ }{{s}^{-2}}\]