what is the difference between speed and velocity?

what is the difference between speed and velocity?
same as the upper tittle!thanks a lot!

idididii 1年前已收到1个回答举报

爱我久久1980 幼苗

共回答了17个问题采纳率：88.2% 举报

speed就是指速度,是一个比较非正式的口语化单词
velocity是一个专业词汇,一般学过物理的都知道v表示速度,这里的v就是velocity的缩写,v是一个矢量,当然是同时表示方向和速率,可以总结为velocity = speed + direction.另外speed其实也有表示速率的意思,没方向

1年前

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