如果在平面上运动，那么位置和速度也会在这个平面上。

OK, if I'm moving in the plane, then position and velocity are in there.

youdao

在需要重新启动模拟时，可以加载一组合适的位置和速度。

Whenever it is necessary to restart the simulation run, an appropriate set of positions and velocities can be reloaded.

youdao

同时还介绍了一名司机与一个演示应用，有能力控制加速度以及位置和速度。

It also presents a driver with a demo application, capable of controlling acceleration as well as position and speed.

youdao

For example, if you're talking about the chalk--if I throw the chalk, you will have to know where it is and how fast it's moving.

比如说,这支粉笔,如果我扔出这支粉笔,你就像知道它的位置和速度

耶鲁公开课 - 基础物理课程节选

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

Now, a little later, and a little later later, because between the first and second, you get a velocity, the second and third you get another velocity.

现在,再晚一点,再再晚一点,因为第一个和第二个位置,你得到一个速度,第二个和第三个位置,你得到另一个速度

耶鲁公开课 - 基础物理课程节选