某一小球以vo=10 m/s的速度水平抛出,在落地之前经过空中A、B两点,在A点小球的速度方向与水平方向的夹角为45o,在B点小球速度方向与水平方向的夹角为60o(空气阻力忽略不计,g取l0 m/s2)..求
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![某一小球以vo=10 m/s的速度水平抛出,在落地之前经过空中A、B两点,在A点小球的速度方向与水平方向的夹角为45o,在B点小球速度方向与水平方向的夹角为60o(空气阻力忽略不计,g取l0 m/s2)..求](/uploads/image/z/5210756-44-6.jpg?t=%E6%9F%90%E4%B8%80%E5%B0%8F%E7%90%83%E4%BB%A5vo%3D10+m%EF%BC%8Fs%E7%9A%84%E9%80%9F%E5%BA%A6%E6%B0%B4%E5%B9%B3%E6%8A%9B%E5%87%BA%2C%E5%9C%A8%E8%90%BD%E5%9C%B0%E4%B9%8B%E5%89%8D%E7%BB%8F%E8%BF%87%E7%A9%BA%E4%B8%ADA%E3%80%81B%E4%B8%A4%E7%82%B9%2C%E5%9C%A8A%E7%82%B9%E5%B0%8F%E7%90%83%E7%9A%84%E9%80%9F%E5%BA%A6%E6%96%B9%E5%90%91%E4%B8%8E%E6%B0%B4%E5%B9%B3%E6%96%B9%E5%90%91%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA45o%2C%E5%9C%A8B%E7%82%B9%E5%B0%8F%E7%90%83%E9%80%9F%E5%BA%A6%E6%96%B9%E5%90%91%E4%B8%8E%E6%B0%B4%E5%B9%B3%E6%96%B9%E5%90%91%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA60o%28%E7%A9%BA%E6%B0%94%E9%98%BB%E5%8A%9B%E5%BF%BD%E7%95%A5%E4%B8%8D%E8%AE%A1%2Cg%E5%8F%96l0+m%EF%BC%8Fs2%29%EF%BC%8E.%E6%B1%82)
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