[填空题]
A cooling fan is turned off when it et4rk d0imag fh f2(3k6msz9 :is running at 85+ be9-o9whc azliz(j 9ycbk/disx )2r-ck),v0rev/min It turns 1500 revolutions before it comyejda9 c9)h(r 9iob)z-icvw+2bk,cs/ xkzl- es 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
