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Re: Solve speeding by limiting cars!
In article <snagiel-1411952325550001@turm-a27.resnet.emory.edu>,
snagiel@emory.edu (Shahak Nagiel) wrote:
>> In article <4895bo$oar@nntp.atlanta.com>, <dwarner@atlanta.com> wrote:
>Many drivers seem to forget a
>fundamental law of physics which states that the kinetic energy is equal
>to mass (the car's weight) times velocity SQUARED.
Yes.
> Regardless of the
>car's mass, the point is that for doubling your speed, the momentum of the
>car increases FOURfold.
Yes.
> From 50 to 75, while only a 50% increase in
>speed, momentum increases 125%, which requires far longer breaking
>distances and makes accidents far more dangerous.
No; you had it right the first time -- it's kinetic energy, not momentum.
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