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质量为,长为的均匀细棒,可绕垂直于棒的一端的光滑水平轴转动,如将此棒放在水平位置,然后任其开始转动,则开始转动时的角加速度为: ( )

单选题
2022-04-02 16:54
A、 65<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/160704649155101491e814d6145cbb39cf1407abfb9dbimage30.png"style="width:54px;height:21px;"/> ;
B、75<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1607046491579bba21f2db8e042a6baab1c06c6dc71e3image30.png"style="width:54px;height:21px;"/> ;
C、 80<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1607046491607a67ca19fec524cb1b6e1ab77ed3f89e2image30.png"style="width:54px;height:21px;"/>
D、60<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1607046491634cc2572eb281842d5952bba413568ae47image30.png"style="width:54px;height:21px;"/> 。
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正确答案
B
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标签： 西南石油大学成人高等教育平台 石油工程 专升本 大学物理 作业1
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