We define average velocity as the position at time four seconds minus the position at time zero, 4 divided by four.

我们定义平均速度，是四秒时的位置，减去0秒时的位置，除以。

youdao

Three divided by five is zero?

除以5等于0么？

youdao

So, three divided by five is zero, with a remainder of three.

因此，3除以5等于，余数为3。

youdao

So, three divided by five is zero, with a remainder of three.

因此，3除以5等于，余数为3。

麻省理工公开课 - 计算机科学及编程导论课程节选

Three divided by five is zero?

除以5等于0么？

麻省理工公开课 - 计算机科学及编程导论课程节选

For example, if you started here and you did all this and you came back here, the average velocity would be zero, because you start and end at the same value of x, you get something; 0 divided by time will still be 0.

例如,如果你从这里开始运动,经过这个过程又回到这里,平均速度就是0,因为初态和末态的位移相同,你得到了什么呢,0除以时间还是0

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