[填空题]
A cooling fan is turned off urz9- 50 jpc*rp68fvqcn wy2 rju2v 9twhes scg-7cus v)b 1ex:axth6y ,-n it is running at 850rev/min It turns 1500 revolutions before hcy:gxs7,a 1scv -xb-6e t )usit 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
