如图,一根长6的木棒(AB),斜靠在与地面(OM)垂直的墙(ON)上,与地面的倾斜角(∠ABO)为60°.当木棒A端沿墙下滑至A'时,B端沿地面向右滑行至点B'.1.求OB的长; 2.当A A′=1时,求BB ′的长.
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![如图,一根长6的木棒(AB),斜靠在与地面(OM)垂直的墙(ON)上,与地面的倾斜角(∠ABO)为60°.当木棒A端沿墙下滑至A'时,B端沿地面向右滑行至点B'.1.求OB的长; 2.当A A′=1时,求BB ′的长.](/uploads/image/z/6683036-68-6.jpg?t=%E5%A6%82%E5%9B%BE%2C%E4%B8%80%E6%A0%B9%E9%95%BF6%E7%9A%84%E6%9C%A8%E6%A3%92%EF%BC%88AB%EF%BC%89%2C%E6%96%9C%E9%9D%A0%E5%9C%A8%E4%B8%8E%E5%9C%B0%E9%9D%A2%28OM%29%E5%9E%82%E7%9B%B4%E7%9A%84%E5%A2%99%28ON%29%E4%B8%8A%2C%E4%B8%8E%E5%9C%B0%E9%9D%A2%E7%9A%84%E5%80%BE%E6%96%9C%E8%A7%92%EF%BC%88%E2%88%A0ABO%EF%BC%89%E4%B8%BA60%C2%B0.%E5%BD%93%E6%9C%A8%E6%A3%92A%E7%AB%AF%E6%B2%BF%E5%A2%99%E4%B8%8B%E6%BB%91%E8%87%B3A%26%2339%3B%E6%97%B6%2CB%E7%AB%AF%E6%B2%BF%E5%9C%B0%E9%9D%A2%E5%90%91%E5%8F%B3%E6%BB%91%E8%A1%8C%E8%87%B3%E7%82%B9B%26%2339%3B.1.%E6%B1%82OB%E7%9A%84%E9%95%BF%EF%BC%9B+2.%E5%BD%93A+A%E2%80%B2%3D1%E6%97%B6%2C%E6%B1%82BB+%E2%80%B2%E7%9A%84%E9%95%BF.)
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