13.质点从坐标原点O沿y轴方向运动到y=4m后,又沿x轴负方向运动到坐标为(-3,4)的B点,则质点从O运动以B通过的路程是_______m,位移大小是________m.14.物体从静止开始作匀加速直线运动,第2s内的位
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![13.质点从坐标原点O沿y轴方向运动到y=4m后,又沿x轴负方向运动到坐标为(-3,4)的B点,则质点从O运动以B通过的路程是_______m,位移大小是________m.14.物体从静止开始作匀加速直线运动,第2s内的位](/uploads/image/z/3581395-43-5.jpg?t=13.%E8%B4%A8%E7%82%B9%E4%BB%8E%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9O%E6%B2%BFy%E8%BD%B4%E6%96%B9%E5%90%91%E8%BF%90%E5%8A%A8%E5%88%B0y%EF%BC%9D4m%E5%90%8E%2C%E5%8F%88%E6%B2%BFx%E8%BD%B4%E8%B4%9F%E6%96%B9%E5%90%91%E8%BF%90%E5%8A%A8%E5%88%B0%E5%9D%90%E6%A0%87%E4%B8%BA%EF%BC%88-3%2C4%EF%BC%89%E7%9A%84B%E7%82%B9%2C%E5%88%99%E8%B4%A8%E7%82%B9%E4%BB%8EO%E8%BF%90%E5%8A%A8%E4%BB%A5B%E9%80%9A%E8%BF%87%E7%9A%84%E8%B7%AF%E7%A8%8B%E6%98%AF_______m%2C%E4%BD%8D%E7%A7%BB%E5%A4%A7%E5%B0%8F%E6%98%AF________m.14.%E7%89%A9%E4%BD%93%E4%BB%8E%E9%9D%99%E6%AD%A2%E5%BC%80%E5%A7%8B%E4%BD%9C%E5%8C%80%E5%8A%A0%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E7%AC%AC2s%E5%86%85%E7%9A%84%E4%BD%8D)
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