如图,菱形ABCD中,AB=5,AC=8,动点P以每秒1个单位的速度沿边DA从点D运动到点A,动点Q同时以每秒1个单位的速度沿边AB从点A运动到点B.连结BP交AC于点E,连结QE.设动点P、Q的运动时间为t秒.(1)求BD的长.(2)
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![如图,菱形ABCD中,AB=5,AC=8,动点P以每秒1个单位的速度沿边DA从点D运动到点A,动点Q同时以每秒1个单位的速度沿边AB从点A运动到点B.连结BP交AC于点E,连结QE.设动点P、Q的运动时间为t秒.(1)求BD的长.(2)](/uploads/image/z/5938922-2-2.jpg?t=%E5%A6%82%E5%9B%BE%2C%E8%8F%B1%E5%BD%A2ABCD%E4%B8%AD%2CAB%3D5%2CAC%3D8%2C%E5%8A%A8%E7%82%B9P%E4%BB%A5%E6%AF%8F%E7%A7%921%E4%B8%AA%E5%8D%95%E4%BD%8D%E7%9A%84%E9%80%9F%E5%BA%A6%E6%B2%BF%E8%BE%B9DA%E4%BB%8E%E7%82%B9D%E8%BF%90%E5%8A%A8%E5%88%B0%E7%82%B9A%2C%E5%8A%A8%E7%82%B9Q%E5%90%8C%E6%97%B6%E4%BB%A5%E6%AF%8F%E7%A7%921%E4%B8%AA%E5%8D%95%E4%BD%8D%E7%9A%84%E9%80%9F%E5%BA%A6%E6%B2%BF%E8%BE%B9AB%E4%BB%8E%E7%82%B9A%E8%BF%90%E5%8A%A8%E5%88%B0%E7%82%B9B.%E8%BF%9E%E7%BB%93BP%E4%BA%A4AC%E4%BA%8E%E7%82%B9E%2C%E8%BF%9E%E7%BB%93QE.%E8%AE%BE%E5%8A%A8%E7%82%B9P%E3%80%81Q%E7%9A%84%E8%BF%90%E5%8A%A8%E6%97%B6%E9%97%B4%E4%B8%BAt%E7%A7%92.%281%29%E6%B1%82BD%E7%9A%84%E9%95%BF.%282%29)
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