A cooling fan is turned off when it is running at 850 rev/min. It turns 1350 revolutions before it comes to a stop.
(a) What was the fan’s angular acceleration, assumed constant? (Ans : -0.47 rad/s2 )
(b) How long did it take for the fan to come to a complete stop? (Ans : 190 s)
(c) How many revolutions would it take in 50 s. (Ans : 614 rev)
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