If the units come out in meters per second, you will quickly discover that the problems in 3.091 are just not that complicated.
如果你的单位是米每秒,你会很快发现,在3。091中的题目并不复杂。
I said that a bit quickly, but we'll come back and look at that idea in more detail later on in the class.
我说的有点快,但是我们以后会再次回顾这个问题,并作深入的研究的
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