[填空题]
A cooling fan is tur s zx0nh5vmk9.ned off when it isg ; sh+6 ffr;-noycwe) running at 850rev/min It turns 1500 revolutions ber wyoen)cf;sf h+-6g;fore it comes to a stop. (a) What was the fan’s angular acceleration, assumed constant? $\frac{rad}{s^2}$ (b) How long did it take the fan to come to a complete stop? s
Post time 2025-2-18 20:00:22
