Help with relativity [relativistic rocket]

  • Thread starter Thread starter billdrix
  • Start date Start date
  • Tags Tags
    Relativity Rocket
billdrix
Messages
2
Reaction score
0
I'm over my head and need help for a story I am writing. I would like the science to be correct. I'm not sure I'm even phrasing the problem correctly, but here goes.

Suppose a spaceship will travel to a star that appears 10 light years from earth. The spaceship will accelerate at 0.1 g (as experienced by the ship) for half the trip then turn around and accelerate the opposite rest of the time. What would be the integrals for determining the proper time and the time as it appears to people on earth?

Thanks

Billdrix
 
Physics news on Phys.org
This page on the http://math.ucr.edu/home/baez/physics/Relativity/SR/rocket.html is just what you need. :biggrin:
 
Last edited by a moderator:
Thank you very much. It appears that I'll have to cheat. :(
 
I just realized that page just shows the results of doing the integral, not the integral itself. I'm sure it's been discussed here before. Try the following Google search:

"relativistic rocket" integral site:physicsforums.com

and poke around in the old threads that this turns up. To broaden the search outside of PF, leave off the site:physicsforums.com bit.
 

Thread 'I don't see how a black hole's event horizon can be crossed'

OK, so this has bugged me for a while about the equivalence principle and the black hole information paradox. If black holes "evaporate" via Hawking radiation, then they cannot exist forever. So, from my external perspective, watching the person fall in, they slow down, freeze, and redshift to "nothing," but never cross the event horizon. Does the equivalence principle say my perspective is valid? If it does, is it possible that that person really never crossed the event horizon? The...
View full post »

Thread 'Question about Parallel Transport'

In this video I can see a person walking around lines of curvature on a sphere with an arrow strapped to his waist. His task is to keep the arrow pointed in the same direction How does he do this ? Does he use a reference point like the stars? (that only move very slowly) If that is how he keeps the arrow pointing in the same direction, is that equivalent to saying that he orients the arrow wrt the 3d space that the sphere is embedded in? So ,although one refers to intrinsic curvature...
View full post »

Thread 'Trying to calculate proper time of worldlines using rotating frames'

So, to calculate a proper time of a worldline in SR using an inertial frame is quite easy. But I struggled a bit using a "rotating frame metric" and now I'm not sure whether I'll do it right. Couls someone point me in the right direction? "What have you tried?" Well, trying to help truly absolute layppl with some variation of a "Circular Twin Paradox" not using an inertial frame of reference for whatevere reason. I thought it would be a bit of a challenge so I made a derivation or...
View full post »

Similar threads

I Can someone falsify this analogy contradicting time dilation?
Replies
25
Views
2K
B Andy Weir's "Hail Mary": Question About Relativistic Rocket
Replies
13
Views
3K
I A matter of time dilation: how much time has actually passed?
Replies
26
Views
2K
B Another special relativity related "paradox"
Replies
15
Views
2K
B How does special relativity apply to the rocket equation?
Replies
30
Views
3K
I Effects of time dilation for near-speed-of-light travel
2
Replies
65
Views
10K
I Can anyone clarify the relativistic twin paradox for me?
Replies
43
Views
3K
I General Relativity rocket puzzle
2
Replies
84
Views
7K
I Force on Scale in Rocket Scenario: Calculation & Discussion
Replies
33
Views
2K
I Paradox: Rocket ship moving in a circle
Replies
12
Views
2K

Hot Threads

Recent Insights

Back
Top