[填空题]
A cooling fan is turned off when it is runnipp47n sv 9-oa qs+hg*a r(naz 8xj+yq,ng at 850revwlvfp 4wvp4htz fm*xqp5 lw4 ex6,(- ,/min It turns 1500 revolutions before it comes to 4t5xv46 (w,l p*e flvzqhw4mf,-xwpp 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
