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匀变速直线运动

> 物体做初速度为零的匀加速直线运动，第5s内的位移是18m，则以下结论正确的是 ( ) A．物体的加速度是3.6m/s2 B．物体的加速度是4m/s2 C．物体在第4s内的位移是16m D．物体在5s内的位移是20m

问题：

发布时间：2024-09-08

物体做初速度为零的匀加速直线运动，第5s内的位移是18m，则以下结论正确的是 ( )

A．物体的加速度是3.6m/s²

B．物体的加速度是4m/s²

C．物体在第4s内的位移是16m

D．物体在5s内的位移是20m

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