必修一力的合成 9.如图2-2-13所示,两相距L的竖直杆,用一根长度大于L的细绳分别固定在杆的两端A和B,细绳上用一光滑的挂钩吊一个重物,其重力为G.当上下移动B端的悬挂点时,C可自由移动,设
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![必修一力的合成 9.如图2-2-13所示,两相距L的竖直杆,用一根长度大于L的细绳分别固定在杆的两端A和B,细绳上用一光滑的挂钩吊一个重物,其重力为G.当上下移动B端的悬挂点时,C可自由移动,设](/uploads/image/z/5335769-65-9.jpg?t=%E5%BF%85%E4%BF%AE%E4%B8%80%E5%8A%9B%E7%9A%84%E5%90%88%E6%88%90+9%EF%BC%8E%E5%A6%82%E5%9B%BE2-2-13%E6%89%80%E7%A4%BA%2C%E4%B8%A4%E7%9B%B8%E8%B7%9DL%E7%9A%84%E7%AB%96%E7%9B%B4%E6%9D%86%2C%E7%94%A8%E4%B8%80%E6%A0%B9%E9%95%BF%E5%BA%A6%E5%A4%A7%E4%BA%8EL%E7%9A%84%E7%BB%86%E7%BB%B3%E5%88%86%E5%88%AB%E5%9B%BA%E5%AE%9A%E5%9C%A8%E6%9D%86%E7%9A%84%E4%B8%A4%E7%AB%AFA%E5%92%8CB%2C%E7%BB%86%E7%BB%B3%E4%B8%8A%E7%94%A8%E4%B8%80%E5%85%89%E6%BB%91%E7%9A%84%E6%8C%82%E9%92%A9%E5%90%8A%E4%B8%80%E4%B8%AA%E9%87%8D%E7%89%A9%2C%E5%85%B6%E9%87%8D%E5%8A%9B%E4%B8%BAG%EF%BC%8E%E5%BD%93%E4%B8%8A%E4%B8%8B%E7%A7%BB%E5%8A%A8B%E7%AB%AF%E7%9A%84%E6%82%AC%E6%8C%82%E7%82%B9%E6%97%B6%2CC%E5%8F%AF%E8%87%AA%E7%94%B1%E7%A7%BB%E5%8A%A8%2C%E8%AE%BE)
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