An electric fan is running on HIGH. After fan has been running of 13.2 minutes, the LOW button is pushed. The fan slows down to 98 rad/sec in 1.83 seconds. The blades of the fan have a radius of 0.62 meters and their deceleration rate is 42.3 rad/sec2. a) What was the initial angular speed of the fan in rev/sec? i am pretty sure i have to use the equation: angular velocity^2=angular velocity^2+2(angular accel)(angular disp) we have final velocity= 98 angular accel= -42.3 angular disp= unknown, but we have radius. time= 1.83 would the angular disp be 2pi?