[填空题]
A cooling fan is turned off when it ikhbj-ch 6p /upeq/)0 :.g nijbs running at 85f,p1p*p4 8u.e rrrfx ao/cn(n0rev/min It turns 1500 revolutions beforcrr1o/r *n,pf .p(nexf48 au pe it 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
