在探索平抛运动规律的实验中,安装器材时必须保证斜槽末端_____,如图所示,O为抛出点,A(30cm,20cm)为物体运动过程中通过的一点,则平抛的初速度为_____m/s.(g取10m/s2)
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![在探索平抛运动规律的实验中,安装器材时必须保证斜槽末端_____,如图所示,O为抛出点,A(30cm,20cm)为物体运动过程中通过的一点,则平抛的初速度为_____m/s.(g取10m/s2)](/uploads/image/z/11345069-29-9.jpg?t=%E5%9C%A8%E6%8E%A2%E7%B4%A2%E5%B9%B3%E6%8A%9B%E8%BF%90%E5%8A%A8%E8%A7%84%E5%BE%8B%E7%9A%84%E5%AE%9E%E9%AA%8C%E4%B8%AD%2C%E5%AE%89%E8%A3%85%E5%99%A8%E6%9D%90%E6%97%B6%E5%BF%85%E9%A1%BB%E4%BF%9D%E8%AF%81%E6%96%9C%E6%A7%BD%E6%9C%AB%E7%AB%AF_____%2C%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2CO%E4%B8%BA%E6%8A%9B%E5%87%BA%E7%82%B9%2CA%2830cm%2C20cm%29%E4%B8%BA%E7%89%A9%E4%BD%93%E8%BF%90%E5%8A%A8%E8%BF%87%E7%A8%8B%E4%B8%AD%E9%80%9A%E8%BF%87%E7%9A%84%E4%B8%80%E7%82%B9%2C%E5%88%99%E5%B9%B3%E6%8A%9B%E7%9A%84%E5%88%9D%E9%80%9F%E5%BA%A6%E4%B8%BA_____m%2Fs.%28g%E5%8F%9610m%2Fs2%29)
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