So, the direction of the force is going to be that of x, y, z.

所以方向是。

youdao

There is no acceleration in the y direction, only in x direction when it starts moving, and that's why we split it.

在y方向上没有加速度，只有在x方向上移动时才有，这就是分解它的原因。

youdao

Now what I want to find,actually, V is what are these two vectors, let's call them U and V, that correspond to moving a bit in the x direction or in the y direction?

现在我实际上想知道的是，这两个向量是什么，我们称它们为，U和，两者对应的是x方向和y方向一点位移？

youdao

If two arrows are equal, you cannot be longer in the x direction and correspondingly short in the y direction.

如果要使两个矢量相等,那么即使 x 分量长一些,y 分量相应地小一些也是不行的

耶鲁公开课 - 基础物理课程节选

I mentioned something of increasing importance only later, which is that you are free to pick another set of axes, not in the traditional x and y direction, but as an oblique direction.

后来我又讲了更重要的知识点,你可以随意选取另外一个坐标系,不再是传统的 x 和 y 方向,而是倾斜过的方向

耶鲁公开课 - 基础物理课程节选

In other words, the x, y location of the touch, the force or depth of the touch, and the vector direction of the touch (2 angles).

FORBES: Apple's Ridiculous Patent