[填空题]
A cooling fan is turned off whe 1 3qu 3-1gb/p)fyt9dpfyh iutn it i oaifp/: 8ii)/6li;xgiqnl jt) (ki-os running at 850rev/min It turns 1500 revolutions before it comesio:8i ( lt/iiia-)qj);/i lgkxo p6fn 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
