本题目来源于试卷: Rotational basic parameter，类别为 美国物理杯赛(Physics Bowl)
[单选题]
05.32: A turntable play/c)ag w.q ce -a7rr.zhlff83cs a record by spiad;en3y9g)pc/s st e)nning at a constant rate of 45 rev/min. What is the average as/s t))e;ygc 93eand pngular acceleration of the record to reach this final angular speed, having started from rest, if it takes 8 seconds to do so? All answers are in units of rad/s2.
A. 337.5
B. 35.34
C. 5.625
D. 0.5890
E. 0.09375
参考答案: D
本题详细解析:
暂无
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