gc textbook chapter 8 Rotational Motion (id: 1242b9443)

admin

本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
An automobile engine slows downaqpcqhe6yaac:y, /t+n)g ;2 e0)7idd4 l ap dd from 4500 rpm to 1200 rxa 6 r m) f2g3a7d./zzcmb6tuspm in 2.5 s. Calculate
(a) its angular acceleration, assumed constant,    $rad/s^2$
(b) the total number of revolutions the engine makes in this time.    $rev$

参考答案:
空格1: -140±2%  空格2: 120±2% 


本题详细解析: