9.如图所示,将工件P(可视为质点)无初速地轻放在以速率”匀速运行的水平传送带的最左端A,工件P在传送带的作用下开始运动,然后从传送带最右端B飞出,落在水平地面上.已知AB的长度L=7.5m,B
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![9.如图所示,将工件P(可视为质点)无初速地轻放在以速率”匀速运行的水平传送带的最左端A,工件P在传送带的作用下开始运动,然后从传送带最右端B飞出,落在水平地面上.已知AB的长度L=7.5m,B](/uploads/image/z/6985340-44-0.jpg?t=9%EF%BC%8E%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%B0%86%E5%B7%A5%E4%BB%B6P%28%E5%8F%AF%E8%A7%86%E4%B8%BA%E8%B4%A8%E7%82%B9%29%E6%97%A0%E5%88%9D%E9%80%9F%E5%9C%B0%E8%BD%BB%E6%94%BE%E5%9C%A8%E4%BB%A5%E9%80%9F%E7%8E%87%E2%80%9D%E5%8C%80%E9%80%9F%E8%BF%90%E8%A1%8C%E7%9A%84%E6%B0%B4%E5%B9%B3%E4%BC%A0%E9%80%81%E5%B8%A6%E7%9A%84%E6%9C%80%E5%B7%A6%E7%AB%AFA%2C%E5%B7%A5%E4%BB%B6P%E5%9C%A8%E4%BC%A0%E9%80%81%E5%B8%A6%E7%9A%84%E4%BD%9C%E7%94%A8%E4%B8%8B%E5%BC%80%E5%A7%8B%E8%BF%90%E5%8A%A8%2C%E7%84%B6%E5%90%8E%E4%BB%8E%E4%BC%A0%E9%80%81%E5%B8%A6%E6%9C%80%E5%8F%B3%E7%AB%AFB%E9%A3%9E%E5%87%BA%2C%E8%90%BD%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E4%B8%8A.%E5%B7%B2%E7%9F%A5AB%E7%9A%84%E9%95%BF%E5%BA%A6L%3D7%EF%BC%8E5m%2CB)
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