[填空题]
A cooling fan is turned e6p dyxea:,ps4b:c avr egq98/u-+ cx45nqti 5ib ,cs off when it is running at 850rev/min It turns 1500 revolutions 5b4, ci5q nitsbefore 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
