如右图所示,为曲柄压榨机,铰链A处常用一水平力F,OB是竖直线,若杆和活塞重力不计,设OA与AB的长度相等当AO与AB的夹角为120°时,货物在竖直方向所受的压力为多少?
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/17 14:48:16
![如右图所示,为曲柄压榨机,铰链A处常用一水平力F,OB是竖直线,若杆和活塞重力不计,设OA与AB的长度相等当AO与AB的夹角为120°时,货物在竖直方向所受的压力为多少?](/uploads/image/z/5891051-11-1.jpg?t=%E5%A6%82%E5%8F%B3%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E4%B8%BA%E6%9B%B2%E6%9F%84%E5%8E%8B%E6%A6%A8%E6%9C%BA%2C%E9%93%B0%E9%93%BEA%E5%A4%84%E5%B8%B8%E7%94%A8%E4%B8%80%E6%B0%B4%E5%B9%B3%E5%8A%9BF%2COB%E6%98%AF%E7%AB%96%E7%9B%B4%E7%BA%BF%2C%E8%8B%A5%E6%9D%86%E5%92%8C%E6%B4%BB%E5%A1%9E%E9%87%8D%E5%8A%9B%E4%B8%8D%E8%AE%A1%2C%E8%AE%BEOA%E4%B8%8EAB%E7%9A%84%E9%95%BF%E5%BA%A6%E7%9B%B8%E7%AD%89%E5%BD%93AO%E4%B8%8EAB%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA120%C2%B0%E6%97%B6%2C%E8%B4%A7%E7%89%A9%E5%9C%A8%E7%AB%96%E7%9B%B4%E6%96%B9%E5%90%91%E6%89%80%E5%8F%97%E7%9A%84%E5%8E%8B%E5%8A%9B%E4%B8%BA%E5%A4%9A%E5%B0%91%3F)
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