Therefore, when you divide by the mass to get the acceleration, the response of different bodies is inverse to the mass.

因此,当你拿力除以质量得到加速度时,不同物体的加速度与质量成反比

耶鲁公开课 - 基础物理课程节选

to actually run the board in the studios. And so now I'm certified to host different radio shows,

这样我才能操作演播室力的仪器。现在，我已经有资格主持不同的电台节目了。

广播人员怎么样？ - SpeakingMax英语口语达人

Every time you are finding out a different force that's acting on a body with different origin.

每次你都会发现不同来源的力,作用在物体上

耶鲁公开课 - 基础物理课程节选

Anyway, what physicists do is they put bodies in various circumstances and they deduce various forces.

总之,物理学家的工作就是,将物体置于不同的环境中,得到不同的力

耶鲁公开课 - 基础物理课程节选

Therefore, what we have done now is, we can take all kinds of springs and we can calibrate the force they will exert under various conditions.

因此,我们现在能做到的就是,我们能处理各种各样的弹簧,我们能测出它们在不同的情况下,产生的力的大小

耶鲁公开课 - 基础物理课程节选

Then you agree this will be the same f but pointing that way.

这个力合 f 大小一样只是方向不同

耶鲁公开课 - 基础物理课程节选