Linked Questions

8 votes
8 answers
6k views

Help understanding Bell's spaceship paradox

The problem statement of Bell's Spaceship paradox is this: Two spaceships float in space and are at rest relative to each other. They are connected by a string. The string is strong, but it ...
QCD_IS_GOOD's user avatar
  • 7,030
7 votes
3 answers
7k views

Relativistic factor between coordinate acceleration and proper acceleration

I did a recent question about relativistic kinematics here: Generalizing a relativistic kinematics formula for spatial-acceleration dependence. I have a confusion. In the textbooks I've seen, they ...
diffeomorphism's user avatar
5 votes
3 answers
4k views

Proper time for an accelerating object

As far as I have read so far, proper time is the time measured on the clock of an inertial frame moving uniformly with respect to another inertial frame. The concept and the mathematical expression ...
Rajath S's user avatar
3 votes
2 answers
4k views

Derivation of relativistic uniformly accelerated motion

I'm trying to understand solution of the following problem from Landau, Lifshitz, Classical Theory Of Fields: (ending skipped). What I see when I "write out the expression for $w^iw_i$", using ...
Ruslan's user avatar
  • 29.6k
3 votes
2 answers
1k views

Velocity of an object undergoing homogenous acceleration

So I was considering the following problem within the context of Special Relativity: Given an object O, with initial velocity v, undergoing constant acceleration at a rate of a, I want to express the ...
Sidharth Ghoshal's user avatar
5 votes
2 answers
2k views

Total time taken for an accelerating frame in special relativity [duplicate]

How does one derive the equation for the total time traveled in a constantly accelerating frame? I found some help at this question: Special Relativity and Constant Acceleration But the information ...
Guy Haley's user avatar
1 vote
2 answers
738 views

How an accelerated object sees another accelerated body in special relativity?

Assume two objects are moving with a constant acceleration $a_1$ and $a_2$, which are the measured accelerations by respective object (or constant force being applied to each of the objects). My ...
McGayan's user avatar
  • 21
3 votes
2 answers
381 views

Relationship between mass preserving four-fources and proper acceleration

Background I studied Rindler's book on Relativity. Relevant information from this book is available on-line here: http://www.scholarpedia.org/article/Special_relativity:_mechanics Given that we ...
Anodinium's user avatar
2 votes
1 answer
265 views

Proper acceleration asymetry in twin paradox

In the Wikipedia article on the twin pararadox, there is an interesting chapter which calculates the difference of age for the twins, with steps of accelerated movement, and steps with constant speed, ...
Trimok's user avatar
  • 17.9k
0 votes
2 answers
42 views

2 different formulas for proper acceleration derived from the same equation

I was looking at this answer which eventually stated this about the proper acceleration (when $\vec v$ is parallel to $\vec a$): $$ \vec \alpha =\gamma^3 \vec a = \gamma^3 \dfrac{d\vec v}{dt}=\dfrac{...
catmousedog's user avatar
2 votes
0 answers
74 views

Under what conditions is the time component of proper acceleration zero?

Given the magnitude of a proper acceleration, the derivative of proper velocity with respect to proper time, how do you determine what component is from the spatial vs temporal dimensions. I am led ...
user3781248's user avatar