[填空题]
A cooling fan is turned z22c)qx 3xcq; gc(bjrozdi8obrbq7 f,wk;7d (4f n:h :e9vc5 aj u1vnpff when it is running at 850rev/min It turns 1500 revolutions beforf1ronhz5,(ak vwieu798b d bc7:pn:4 f;dv jqe 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
