An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of $0\mathrm{.}230$ rev$/$srev$/$s $.$ The magnitude of the angular acceleration is $0\mathrm{.}890$ rev$/$s$2$rev$/$s$2.$ Both the the angular velocity and angular accleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter $0\mathrm{.}740$ mm $.$