[填空题]
A cooling fan is turnyvi2w x,a04submd x2 l:(dm ,ged off wflv /y191. ;5d2jmlhjjwszv* p/ksk a hen it is running at 850rev/min It turns 1500 revolutions before it comes12hll. /yvj1/9jj*pf asvkz m 5s ;kdw 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
