Displacement, Initial velocity, Final velocity, Acceleration and Time.

位移，初速度，末速度，加速度和时间。

youdao

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.

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。

youdao

OK, so, now that we know the position of the point as a function of time, we can try to study how it varies in particular things like the speed and acceleration.

好，既然我们已经知道点的位置，它是一个关于时间的函数，我们就能了解，它在诸如速率或加速度的量中是如何变化的。

youdao

It knows that this particle happened to have a height of 15, at the time of 0, and a velocity of 10, and it is falling under gravity with an acceleration of -10.

这个质点恰好处在高度为15的地方,零时刻,初速为10,并在重力作用下以-10的加速度下坠

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