Sarah Fox wrote: > Hi Ric, > > >> So what quantity do we have that is mass times velocity.... but is > clearly differentiates between each equal product... > > Well, mass times velocity is *momentum.* > > >> Clearly... 2 x 2 does not equal 4 x 1..... at least in the case of how > much mass at what speed hits any given other mass. > >> What quantity am I looking for here ? > > I'm not sure what you mean here. Kinetic energy, (mv^2)/2, perhaps > differentiates, sort of, I guess, if I understand you correctly. Only you'd > be looking at 2 x 2^2 / 2 being different from 4 * 1^2 / 2, etc. Is that > what you mean? > What I am saying is that a 10 pound ball going at 5 m/s is going to have a completly different affect then a 5 pound ball going at 10 m/s tho both have a momentum of 50 momentum units. > > >> Well.. can see I will have to publish all the data I can get on this > action. I will be taking it apart in the next few days so I have the > opportunity to measure things for you. But as far as your last sentence > there.... Evidently our friends at Steinway have come to this conclusion as > well... we just had a long thread on Steinways new view on friction... and > it was very much on the light side. > > Cool! It will be interesting to hear what you find! > > Where can I find out more about Steinway's new views? Which thread? (I > don't read them all. Only so many hours in the day!) > > Peace, > Sarah > > PS > > >>Yes... welll... now it seems to me that I have been basically right on > target all along...except that I have been using the term inertia > erroneously > > Hmmmmm.... MmmmmHmmmm... ;-) Physics is a bit more involved than most > people think. Force, momentum, kinetic energy, velocity, etc. can't be > scrambled about and still make any sort of sense. I think we could all > stand to learn more about physics, myself included. It's fun stuff. You'll > really enjoy it when you get into it more, especially with all the > mathematics you're studying. Basic principles of calculus really make > physics sing! > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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