But if you imagine making these measurements more and more and more quickly, in the end, you can measure what you can say is the acceleration now.

但如果你想越来越短的时间内,测量这些数据,最终,你会测量出你所说的现在的加速度

耶鲁公开课 - 基础物理课程节选

What's your plan for measuring acceleration if some little thing is moving?

如果某个小物体在运动,你要如何测量加速度

耶鲁公开课 - 基础物理课程节选

Acceleration is the easiest thing to measure of these three quantities.

加速度是这三个量中,最容易测量的

耶鲁公开课 - 基础物理课程节选

Tell me exactly what you want to do to measure acceleration.

请详细告诉我你想怎样测量加速度

耶鲁公开课 - 基础物理课程节选

That's how by either balancing the unknown force with a known force or by simply measuring the acceleration as I fall towards this podium and multiplying by mass, you can find the force that exerts on me.

我们既可以让未知力与已知力平衡,也可以只测量我冲向讲台时加速度的大小,再与我的质量相乘,都能求出作用在我身上的力的大小

耶鲁公开课 - 基础物理课程节选