In my days, they would say, "Find out when you want an object to go through that point."

我读书的时候,老师要求我,"求出物体何时经过该点"

耶鲁公开课 - 基础物理课程节选

when you want to find out specifically what category of object you are discussing.

当你想了解你们所讨论的事情中特定一类的情况。

What kind of 课堂 - SpeakingMax英语口语达人

Once you know those, you can find the position of the object at all future times.

只要知道了这些,你就能知道物体在任意时刻的位置

耶鲁公开课 - 基础物理课程节选

So if we differentiate this object, I'm gonna find a first order condition in a second.

想要求它的导数,先让我想想一阶条件

耶鲁公开课 - 博弈论课程节选

Imagine then from now on, we can find the mass of any object, right?

假设从现在开始,我们就能测量任何物体的质量了,对吧

耶鲁公开课 - 基础物理课程节选

What can actually happen is that if you're in an enormous laboratory, which is made up of an enormous object, then you will find that you can, in fact, attach it to the wall.

其实真实的情况就是,如果你在一个巨大的实验室里,这个实验室由巨大的物体组成,你就会发现能够,将它与墙相连

耶鲁公开课 - 基础物理课程节选

When you have a velocity in the moving plane frame and you want to find the velocity on the ground, you should add to every object in the plane the velocity of the plane with respect to the ground.

当你在运动的飞机上运动,然后你想找到相对于地面的速度,你就应该给每个物体加上,飞机相对于地面的速度

耶鲁公开课 - 基础物理课程节选

You see an object in motion, you find a and you give a a certain numerical value, 10 meters per second squared.

你看到一个物体在运动,你会发现它的 a,然后给 a 赋值,10 米每秒平方

耶鲁公开课 - 基础物理课程节选

Then, to find the meaning of b, we take one derivative of this, dx/dt, that's velocity as a function of time, and if you took the derivative of this guy, you will find as at+b. That's the velocity of the object.

接下来,为了弄清b的含义,我们取它的一阶导数,dx/dt,得到速度作为时间的函数,如果你对它求导的话,你会得到at+b,这就是物体的速度

耶鲁公开课 - 基础物理课程节选