🚀 go-pugleaf

hemenway@ll.mit.edu writes:

>In article <1992Jul29.133642.10561@esfra.sub.org> holger@esfra.sub.org (Holger Stegemann) writes:
>>For example, if a spaceship accelerates with 1 g for 1 year, what is it's
>>velocity? I couldn't find a formula for it.

>For constant A, 

>V=A*T

>In your unfortunate example, you have a problem.
>In free space, nothing can accelerate at 1 g (9.8 m/s) for one
>year (3.1e7 s) because the object would exceed the speed of light
>(2.997e8 m/s).

I think Holger Stegemann is talking about the acceleration in the
spaceship's rest frame.  That could be held at 1g, at least in
theory, for as long as you like.  I think Taylor and Wheeler 
discuss this.  I don't have the formula on hand, though...

-- 
Matt McIrvin  mcirvin@husc.harvard.edu 
"Robber bands stretched across the land, snapping up ill-gotten loot."
                                      -- "The Lone Stranger and Porky"