如图,长1.5米的轻质木板OA(质量可忽略)的一端用一细绳吊成水平,已知细绳能承受的最大拉力为5N.现在轴O的正上方放一重为7.5N的金属小球,并使小球在2N的水平拉力作用下向右做匀速直线运
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/22 03:15:09
![如图,长1.5米的轻质木板OA(质量可忽略)的一端用一细绳吊成水平,已知细绳能承受的最大拉力为5N.现在轴O的正上方放一重为7.5N的金属小球,并使小球在2N的水平拉力作用下向右做匀速直线运](/uploads/image/z/3578608-64-8.jpg?t=%E5%A6%82%E5%9B%BE%2C%E9%95%BF1.5%E7%B1%B3%E7%9A%84%E8%BD%BB%E8%B4%A8%E6%9C%A8%E6%9D%BFOA%EF%BC%88%E8%B4%A8%E9%87%8F%E5%8F%AF%E5%BF%BD%E7%95%A5%EF%BC%89%E7%9A%84%E4%B8%80%E7%AB%AF%E7%94%A8%E4%B8%80%E7%BB%86%E7%BB%B3%E5%90%8A%E6%88%90%E6%B0%B4%E5%B9%B3%2C%E5%B7%B2%E7%9F%A5%E7%BB%86%E7%BB%B3%E8%83%BD%E6%89%BF%E5%8F%97%E7%9A%84%E6%9C%80%E5%A4%A7%E6%8B%89%E5%8A%9B%E4%B8%BA5N.%E7%8E%B0%E5%9C%A8%E8%BD%B4O%E7%9A%84%E6%AD%A3%E4%B8%8A%E6%96%B9%E6%94%BE%E4%B8%80%E9%87%8D%E4%B8%BA7.5N%E7%9A%84%E9%87%91%E5%B1%9E%E5%B0%8F%E7%90%83%2C%E5%B9%B6%E4%BD%BF%E5%B0%8F%E7%90%83%E5%9C%A82N%E7%9A%84%E6%B0%B4%E5%B9%B3%E6%8B%89%E5%8A%9B%E4%BD%9C%E7%94%A8%E4%B8%8B%E5%90%91%E5%8F%B3%E5%81%9A%E5%8C%80%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90)
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