What is it you have to know about this object that was thrown, I claim, is the initial location of the object and the initial velocity.

关于这个物体,我们需要了解什么,我要强调的,就是这个物体的初位置和初速度

耶鲁公开课 - 基础物理课程节选

They tell you the initial location and initial velocity of the object.

它们表示的是物体的初始位移,和初始速度

耶鲁公开课 - 基础物理课程节选

So I realize that the constant, c, is the initial location of the object, and it's very common to denote that by x0.

所以我发现常数c,就是物体的初位移,我们习惯用x0表示

耶鲁公开课 - 基础物理课程节选

Then, in every situation where the body has an acceleration a, the location has to have this form, where this number is where it was initially, this was the initial velocity of the object.

在任何研究对象具有加速度a的情况下,它的位移就一定具有这种形式,这个系数代表了它的初位移,这个代表了它的初速度

耶鲁公开课 - 基础物理课程节选