成考院校在线答案
- 2023-02-12 [单选] <p class="MsoNormal">20、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">平面一般力系的平衡方程可以求解（</span><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">）个未知数。</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">15、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">关于虚位移说法不正确的（</span><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">）。</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">2、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">正方体上的六个面各作用有一个平面汇交力系，则该力系独立的平衡方程最多有：</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">8、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">第二类拉格朗日方程不可用于研究具有（）质点系的力学问题。</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">23、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">惯性力的方向与加速度的方向（</span><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">）。</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">14、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">力的可传性不适用于（</span><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">）。</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">26、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">空间力偶矩是（</span><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">）。</span></p>
- 2023-02-12 [单选] <p class="MsoNormal">27、 <span style="font-family:Microsoft Yahei;">边长</span><i><span>b </span></i><span>=100 <i>mm</i> </span><span style="font-family:Microsoft Yahei;">的正方形均质板重</span><span>400N</span><span style="font-family:Microsoft Yahei;">，由三根绳拉住，如图所示。当</span><b><i><span>FG</span></i></b><span style="font-family:Microsoft Yahei;">绳被剪断的瞬时，</span><b><i><span>AD</span></i></b><span style="font-family:Microsoft Yahei;">绳的张力（</span><span><span> </span></span><span style="font-family:Microsoft Yahei;">）；<img alt="" src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191120/20191120100829_185.png"></span> </p><p class="MsoNormal"> <span> </span> </p>
- 2023-02-12 [单选] <p class="MsoNormal">28、 <span style="font-family:Microsoft Yahei;">边长</span><i><span>b </span></i><span>=100 <i>mm</i> </span><span style="font-family:Microsoft Yahei;">的正方形均质板重</span><span>400N</span><span style="font-family:Microsoft Yahei;">，由三根绳拉住，如图所示，当</span><b><i><span>AD</span></i></b><span style="font-family:Microsoft Yahei;">和</span><b><i><span>BE</span></i></b><span style="font-family:Microsoft Yahei;">两绳运动到铅垂位置时，</span><span>AD </span><span style="font-family:Microsoft Yahei;">绳的张力（</span><span><span> </span></span><span style="font-family:Microsoft Yahei;">）。<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191120/20191120101359_412.png" alt=""></span></p><p class="MsoNormal"> <span> </span></p>
- 2023-02-12 [单选] <p class="MsoNormal">29、<span style="font-family:宋体">如下图所示，正立方体的顶角上作用着六个大小相等的力，此力系向任一点简化的结果是</span><span lang="EN-US">( )</span><span style="font-family:宋体">。</span></p> <p class="MsoNormal"><span lang="EN-US"><img width="110" height="120" id="图片 11" src="http://wljy.whut.edu.cn//uploadfiles/word/lllx001.files/image007.jpg"></span></p>