惯性——木块一定倾倒吗？

每个物体都有惯性，在讲到牛顿第一定律时，各种物理教材中及从事物理教学的老师也常举这样的例子：如汽车急刹车时，车里的人会向前倾，而汽车突然加速时，车里的人会向后倾。其实在理解惯性拳这样的例了不恰当，而教材中的参考答案及许多老师对这一例题的解释往往是含糊不清，文中对这一例题重新做出解释。

Inertia----An inappropriate example piece

Each object all has the inertia, when talks about the Newton first law, in each physical teaching material and is engaged in the physical teaching teacher also often cites such example: When automobile slam on the brakes, in the vehicle person can to the anteversion, when the automobile accelerates suddenly, in the vehicle person can approach the caster.It really understood the inertia gave such example not to be inappropriate, but perhaps in teaching material reference answer multi-teachers to this sample question explanation often were unclear, in the article made the explanation to this sample question.