關於馬力和扭力 - 機車
By Donna
at 2009-03-18T19:38
at 2009-03-18T19:38
Table of Contents
台灣人以前被低水準爛雜誌教壞了,都以為加速看扭力極速看馬力.
其實事情很簡單:
加速快的車,要在較短時間達到1/2 mV^2 =E的動能,所以E/t=P必須要大.
所以加速要看馬力.
極速時必須克服速度v時的阻力f,阻力功率=fv=P
所以極速也是看馬力.
這是台灣車界胡說八道第一名的問題.
--
超跑夢 ///M Power
--
其實事情很簡單:
加速快的車,要在較短時間達到1/2 mV^2 =E的動能,所以E/t=P必須要大.
所以加速要看馬力.
極速時必須克服速度v時的阻力f,阻力功率=fv=P
所以極速也是看馬力.
這是台灣車界胡說八道第一名的問題.
--
超跑夢 ///M Power
--
Tags:
機車
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