我来把更一般的形式，写出来吧，在一维空间中，位置和速度，作为时间函数的，一般形式，这里的加速度是一个常数。

I now would like to write down, in most general form the equation for the position and the velocity as a function of time for a one-dimensional motion whereby the acceleration is constant.

youdao

当我们考虑到重力时，物体受重力，加速度影响，重力加速度，是一个常数。

When we have gravity an object is influenced by the gravitational acceleration and the gravitational acceleration is a constant.

youdao

请注意此处的加速度，是一个常数，不随时间变化而变化，不过速度是变化的。

So notice that the acceleration is constant in time, is not changing but the velocity is changing.

youdao

请注意此处的加速度，是一个常数，不随时间变化而变化，不过速度是变化的。

So notice that the acceleration is constant in time, is not changing but the velocity is changing.

youdao