由km h^-1 變 m s^-2 為什麼要除3.6 ?
explain一下ok?
轉單位問題 唔係好明
2009-11-28 11:23 pm
回答 (2)
2009-11-29 12:40 am
✔ 最佳答案
km h^-1是每小時若干公里的意思m s^-1 是每秒若干米
1 km = 1000m
1 hour = 3600 seconds
若是 x km h^-1就是每小時x公里
亦即每3600秒1000x米
所以是每秒1000x/3600米 = x/3.6 ms^-1
2009-11-29 1:16 am
As 1km = 1000m & 1h = 1s x 60x 60
therefore, 1km/1h = 1000m/1sx60x60
= 1000/3600= 1/3.6 ms^-1
Therefore, change the unit from km h^-1 to m s^-1 :
e.g. 1km h^-1 x 1/3.6 ms^-1 =1m s^-1
therefore, 1km/1h = 1000m/1sx60x60
= 1000/3600= 1/3.6 ms^-1
Therefore, change the unit from km h^-1 to m s^-1 :
e.g. 1km h^-1 x 1/3.6 ms^-1 =1m s^-1
參考: myself
收錄日期: 2021-04-23 23:20:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091128000051KK00867