conversion of SI units
回答 (1)
2007-01-25 7:56 am
✔ 最佳答案
1 miles = 1.609 千米 kilometres = 16091 hr = 60 min x 60 sec = 3600 sec
1miles/hr = 1609 / 3600 = 0.446944444444444444 m/s
收錄日期: 2021-04-12 23:05:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070124000051KK04557