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匀变速直线运动

> 一质点做直线运动的位移 x与时间 t的关系为 x=5t+t 2（位移单位为m、时间单位为s），则该质点（） A．第1s内的位移是5m B．任意1s内的速度增量都是2m/s C．任意相邻1s内的位移之差都是1m D．前2s内的平均速度是6m/s

问题：

发布时间：2024-09-10

一质点做直线运动的位移 x与时间 t的关系为 x=5t+t ²（位移单位为m、时间单位为s），则该质点（）

A．第1s内的位移是5m B．任意1s内的速度增量都是2m/s

C．任意相邻1s内的位移之差都是1m D．前2s内的平均速度是6m/s

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一质点做直线运动的位移 x与时间 t的关系为 x=5t+t 2（位移单位为m、时间单位为s），则该质点（ ） A．第1s内的位移是5m B．任意1s内的速度增量都是2m/s C．任意相邻1s内的位移之差都是1m D．前2s内的平均速度是6m/s

可能感兴趣的题目：

一质点做直线运动的位移 x与时间 t的关系为 x=5t+t ²（位移单位为m、时间单位为s），则该质点（）

A．第1s内的位移是5m B．任意1s内的速度增量都是2m/s

C．任意相邻1s内的位移之差都是1m D．前2s内的平均速度是6m/s