gc textbook chapter 8 Rotational Motion (id: 52fdbbe8e)

[填空题]
(a) A grinding wheeltl0j*68,aug d our-wfj4 f3za u jlf;, 0.35 m in diameter rotates at 2500 rpm.temdx2f o0 0wqdwq :u :zzz.44(7ld ec Calculate its angular velocity in ez2(ld ufzd7o:xt w0cd0 q.mewq:4z 4$rad/s$ $\omega$ =    $rad/sec$
(b) What are the linear speed and acceleration of a point on the edge of the grinding wheel? v =    $m/s$ $a_R$ =    $ m/s^2$

参考答案:
空格1: 261.8±2%  空格2: 46±2%  空格3: 12000±2% 


本题详细解析: