这意味着，当你向上加速时，当电梯加速时，弹簧上的读数会更大，你会感到沉重。

It means, when you are accelerating upwards, as the elevator picks up speed, the reading on the spring will be more and you will feel heavy.

youdao

加速整个系统，张力会变大，这可以从弹簧秤的读数中，看出来。

You accelerate the system, the tension will increase and you will see that, you will read that on the scale.

youdao

有上述公式可知，加速度取决于弹性系数和弹簧(即汽泡纸)收缩的距离。

So the acceleration depends on the value of the spring constant as well as the distance the spring (bubble wrap) is compressed.

youdao

You cannot have a spring pulled only at one side, because then it will then accelerate with infinite acceleration in that direction.

你不可能对弹簧只施加一边的拉力,因为那样的话弹簧就会以无穷大的加速度加速,就在这个方向上

耶鲁公开课 - 基础物理课程节选

If every time I get the same acceleration, I'm convinced this is a reliable spring that is somehow producing the same force under the same condition.

如果每次都能得到相同的加速度,这个弹簧的可靠性就能令人信服,即它在相同的条件下能够产生相等的力

耶鲁公开课 - 基础物理课程节选

It means, when you are accelerating upwards, as the elevator picks up speed, the reading on the spring will be more and you will feel heavy.

也就是说当你向上做加速运动时,就像电梯加速的时候,弹簧的读数会增大,你会觉得自己变重了

耶鲁公开课 - 基础物理课程节选