[填空题]
A cooling fan is tur4 8v)ci 0oudbzngm. -f;hcapx kn g wr..iprdec;)63x;ed off when it is running at 850rev/min It turns 1500 revolutions before it comep;h i;p .xa.3;m6)g.xrc-drckgw fnes 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
