An electric fan is turned off, and its angular velocity decreases uniformly from 490 rev/min to 240 rev/min in 4.20 s. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Rotation of a bicycle wheel. Find the angular acceleration in rev/s. Express your answer in revolutions per second squared. = 0 ? Submit Request Answer Part B rev/s Find the number of revolutions made by the motor in the 4.20 s interval. Express your answer as a number of revolutions. N = PPearson rev ? rev An electric fan is turned off, and its angular velocity decreases uniformly from 490 rev/min to 240 rev/min in 4.20 s. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Rotation of a bicycle wheel. Submit Request Answer Part C How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part A? Express your answer in seconds. I Submit Request Answer ? S R