Keep track of the current position and velocity of an object.

对峙今朝的地位和速度跟踪对象。

youdao

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

如果在平面上运动，那么位置和速度也会在这个平面上。

youdao

The position and velocity were controlled by servo and the DC motor respectively.

输出控制量最终通过舵机和直流电机分别对小车的位置和速度进行控制。

youdao

What it means is if you'd release a rock at that location one second before with a certain speed that we can calculate, it would've ended up here with precisely the position and velocity it had at the beginning of our experiment.

它的意义在于,若在该处以特定速度抛出一个物体,这个速度可通过计算得到,一秒之后,物体会运动至我们设定的起点,并且速度为我们设定的初速度

耶鲁公开课 - 基础物理课程节选

Once you can take one derivative, you can take any number of derivatives and the derivative of the velocity is called the acceleration, and we write it as the second derivative of position.

只要你能求一阶导数,你就能求任意阶的导数,速度的导数被称为"加速度",我们把它写成位移的二阶导数

耶鲁公开课 - 基础物理课程节选

One or more wearable motion trackers, connected to a smartphone, deliver real-time 3D joint angles, position and velocity.

ENGADGET: Xsens teases wearable 3D body sensors that won't cost, will track an arm and a leg (video)

Freespace Sensor Modules are used by engineers to add inertial motion control to a product without having to learn about motion sensing or MEMS. These compact modules, the smallest of which is 9mm x 19mm x 2.5mm, are pre-calibrated for mass production, provide a well-documented API for interpreting motion, and provide data such as cursor position, linear acceleration, angular position, and angular velocity to enable the creation of novel applications.

ENGADGET: blogger-avatar