Question: 18. (Rotation) A cooling fan is turned off when it is running at 850 rev/min. It turns 1250 revolutions before it comes to a

18. (Rotation) A cooling fan is turned off when it is running

18. (Rotation) A cooling fan is turned off when it is running at 850 rev/min. It turns 1250 revolutions before it comes to a stop. i What was the fan's angular acceleration, assumed constant? ii How long did it take the fan to come to a complete stop? Answer: i) a = -0.50 rad/s ii) t x 180 s

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