為何加速1倍要2倍作功? I know the mathematical explanation in w=0.5mv^2, but I do not know the physical explanation.?

2016-05-10 9:09 am
為何加速1倍要2倍作功?

I know the mathematical explanation in w=0.5mv^2, but I do not know the physical explanation.
更新1:

都話要physical explanation

回答 (2)

2016-05-12 9:35 am
This is, in fact, what nature does.

The work-done energy equation gives presents the rule of nature in mathematical terms. In fact, linear relationship between physics quantities are rare. Many of the physical relationships you learn in school are much simplified.
2016-05-12 5:21 am
>> E=0.5mV^2 <<
速度V加倍(x2)=>能量(功)E為 4倍 (2^2=4)


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