力(力学知识)
来源:学生作业帮 编辑:大师作文网作业帮 分类:物理作业 时间:2024/11/06 02:40:54
A、B两物体重分别为GA=3N, GB=4N,A用细线悬挂在天花板上,其下端用轻弹簧与B相连,而B放在水平地面上,若A、B间轻弹簧的弹力大小为2N,则线中张力大小和地面受到的压力大小可能分别为( ) A. 1N 6N B. 5N 6N C. 1N 2N D. 5N 2N
解题思路: 从受力分析去考虑
解题过程:
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最终答案:略
解题过程:
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最终答案:略