Michel Jullian wrote: > > ----- Original Message ----- > From: "Harry Veeder" <[EMAIL PROTECTED]> > To: <vortex-l@eskimo.com> > Sent: Thursday, November 30, 2006 8:37 AM > Subject: Re: [Vo]: Re: weight and charge > > >> >> Yes that is true, but I am positing a slight weight loss when >> travelling horizontally and while remaining in contact with >> the ground. >> >> The assertion that weight is zero at a horizontal speed of 17,000 mph >> was computed with standard physics. > > Let's see, > > F=ma > Weight mg = m*v^2/r (mass times centripetal acceleration) > => v=Sqrt(rg)=Sqrt(6.4E6m*9.8ms^-2) > =7920 m/s > =7920/1609*3600=17700mph, that's about right > >> >> However, after some initial efforts to quantity my concept of weight, I >> would >> say weight will approach zero asymptotically with increasing horizontal >> speed, but will never actually equal zero. (With speed on the x-axis and >> weight >> on the y-axis the curve is bell-shaped). > > I disagree, apparent weight can become negative. Any plane traveling faster > than 17,000 mph would have to have it's seats on the ceiling :) > > Michel
This is an *effective-weight* -- a centrifugal force -- caused by an inertial mass travelling so fast that it opposes gravity. Harry
