物体沿直线运动,经过A B两点的速度分别为Va和Vb,经过A和B的中点的速度为Vc,且Vc=(Va+Vb)/2;已知物体在AC段做加速度a1的匀加速直线运动,在CB段做加速度为a2的匀加速直线运动,则( )A.a1=a2 B.a
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![物体沿直线运动,经过A B两点的速度分别为Va和Vb,经过A和B的中点的速度为Vc,且Vc=(Va+Vb)/2;已知物体在AC段做加速度a1的匀加速直线运动,在CB段做加速度为a2的匀加速直线运动,则( )A.a1=a2 B.a](/uploads/image/z/2328154-34-4.jpg?t=%E7%89%A9%E4%BD%93%E6%B2%BF%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E7%BB%8F%E8%BF%87A+B%E4%B8%A4%E7%82%B9%E7%9A%84%E9%80%9F%E5%BA%A6%E5%88%86%E5%88%AB%E4%B8%BAVa%E5%92%8CVb%2C%E7%BB%8F%E8%BF%87A%E5%92%8CB%E7%9A%84%E4%B8%AD%E7%82%B9%E7%9A%84%E9%80%9F%E5%BA%A6%E4%B8%BAVc%2C%E4%B8%94Vc%3D%EF%BC%88Va%2BVb%EF%BC%89%2F2%EF%BC%9B%E5%B7%B2%E7%9F%A5%E7%89%A9%E4%BD%93%E5%9C%A8AC%E6%AE%B5%E5%81%9A%E5%8A%A0%E9%80%9F%E5%BA%A6a1%E7%9A%84%E5%8C%80%E5%8A%A0%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E5%9C%A8CB%E6%AE%B5%E5%81%9A%E5%8A%A0%E9%80%9F%E5%BA%A6%E4%B8%BAa2%E7%9A%84%E5%8C%80%E5%8A%A0%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E5%88%99%EF%BC%88+%EF%BC%89A.a1%3Da2+B.a)
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