A smile can not stop the tears falling velocity, the vocal cords do not stop my trembling voice, empty shell, lose all that only force can support.

微笑止不住泪水下滑的速度，声带止不住我颤抖的嗓音，空有的外壳，失去所有那个唯一可以支持的力量。

youdao

So if I strobe this apple while it was falling I would see the separation, when it strobes to increase with time, because the velocity goes up with time.

如果用频闪相机拍摄，苹果下落的过程，可以看到频闪的间隔，苹果的距离，随着时间不断变大，因为速度随着时间而变大。

youdao

The falling object, after traveling a certain distance through the air reaches a final speed, or "terminal velocity," because the object's friction with the air slows the fall.

物体在下落一定距离后由于空气阻力都会达到一个终极速度。

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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