[填空题]
A cooling fan is turned off when it is running at 8j2)7d0fa /q bxsvize*50rev/min It turns 1500u0*. laxeg* w:to)aj +dwnw1s revolutions before it comeswux*w*g )ls1 0o + t:w.anjeda 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
