25.如图,两长度均为5m的轻杆AB、BC,处在同一竖直平面内,A、B、C三处均用铰链连接,其中A、C两点在同一水平面上且相距6m.现在BC杆的中点处施加一水平作用力F=36N,整个装置仍保持静止不动,若
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![25.如图,两长度均为5m的轻杆AB、BC,处在同一竖直平面内,A、B、C三处均用铰链连接,其中A、C两点在同一水平面上且相距6m.现在BC杆的中点处施加一水平作用力F=36N,整个装置仍保持静止不动,若](/uploads/image/z/12149615-47-5.jpg?t=25%EF%BC%8E%E5%A6%82%E5%9B%BE%2C%E4%B8%A4%E9%95%BF%E5%BA%A6%E5%9D%87%E4%B8%BA5m%E7%9A%84%E8%BD%BB%E6%9D%86AB%E3%80%81BC%2C%E5%A4%84%E5%9C%A8%E5%90%8C%E4%B8%80%E7%AB%96%E7%9B%B4%E5%B9%B3%E9%9D%A2%E5%86%85%2CA%E3%80%81B%E3%80%81C%E4%B8%89%E5%A4%84%E5%9D%87%E7%94%A8%E9%93%B0%E9%93%BE%E8%BF%9E%E6%8E%A5%2C%E5%85%B6%E4%B8%ADA%E3%80%81C%E4%B8%A4%E7%82%B9%E5%9C%A8%E5%90%8C%E4%B8%80%E6%B0%B4%E5%B9%B3%E9%9D%A2%E4%B8%8A%E4%B8%94%E7%9B%B8%E8%B7%9D6m.%E7%8E%B0%E5%9C%A8BC%E6%9D%86%E7%9A%84%E4%B8%AD%E7%82%B9%E5%A4%84%E6%96%BD%E5%8A%A0%E4%B8%80%E6%B0%B4%E5%B9%B3%E4%BD%9C%E7%94%A8%E5%8A%9BF%EF%BC%9D36N%2C%E6%95%B4%E4%B8%AA%E8%A3%85%E7%BD%AE%E4%BB%8D%E4%BF%9D%E6%8C%81%E9%9D%99%E6%AD%A2%E4%B8%8D%E5%8A%A8%2C%E8%8B%A5)
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