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匀变速直线运动

> 物体从A向B做匀减速直线运动，通过A点时速度为10m/s,通过B点时速度为4m/s，C点为AB的中点，AB的距离为14m，则（） A．物体的加速度大小为6 m/s2 B．AB段的平均速度大小为14 m/s C．物体从A到B所用的时间为4s D．物体通过C点的瞬时速度为

问题：

发布时间：2024-09-09

物体从A向B做匀减速直线运动，通过A点时速度为10m/s,通过B点时速度为4m/s，C点为AB的中点，AB的距离为14m，则（）

A．物体的加速度大小为6 m/s²

B．AB段的平均速度大小为14 m/s

C．物体从A到B所用的时间为4s

D．物体通过C点的瞬时速度为

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