All Questions
Tagged with relative-motion special-relativity
21
questions with no upvoted or accepted answers
2
votes
0
answers
90
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Would impact angle matter on relativistic impactor?
I'm trying to calculate (for fun) a comparison between a kinetic impactor and an H-bomb.
I would assume this to be a fairly straight forward problem involving kinetic energy and a table of various H-...
- 1,340
1
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74
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Coordinate transformation and absolute motion in general relativity
In special relativity, all motion is relative. But in the presence of black hole, all motion is with respect to black hole. The curvature of spacetime depends on how far we are away from the black ...
- 134
1
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0
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74
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Attempting to solve the twin paradox without acceleration
My teacher told me that the key to solve the twin paradox is acceleration of the one that travel away. However, I feel a little bit uncertain that time change significantly by just a slightly nudge of ...
- 11
1
vote
1
answer
108
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Correlation between velocity and homogeneity of spacetime and isotropy of space
Considering only inertial frames of reference and constant velocities, does the fact that any velocity, with the exception for the speed of light in a vacuum, can be transformed, via an accurate ...
- 145
1
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1
answer
61
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Zero longitudinal momentum in Special Relativity
A particle is moving with an arbitrary momentum $p$ in K-reference frame. According to Jackson, "there is a unique Lorentz transformation in the $z$-direction to a frame K' where the particle has no $...
- 1,184
1
vote
1
answer
84
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Can the Doppler effect account for the increase in an object's energy with velocity?
I am aware that the relativistic mass can be expressed in terms of rest mass and momentum, which seems to be the canonical explanation, but I am looking at an alternative way of visualising the ...
- 2,163
1
vote
1
answer
55
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Relative Movements Agreement on Object speed
I am confused about Relative Motion.Lets suppose we have one train and two observer.One of them inside the train and the other one is outside.Lets think the outside observer see the train moves a ...
- 21
0
votes
1
answer
102
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How does one interpret the relative motion of an object in orbit as it compares to to the object it is orbiting?
How does one interpret the relative motion of an object in orbit as it compares to to the object it is orbiting?
In flat spacetime, it's pretty easy to determine relative motion. If Alice sees Bob as ...
- 1
0
votes
1
answer
75
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Time dilatation - relative movement
Sorry for eventual factual errors, I am just hobbyist.
A spaceship flies with nearly speed of light away from earth and back.
Time on board were going slower than on earth during flight, so back on ...
- 101
0
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0
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55
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Spinning observer inside a solenoid paradox?
It is well known that magnetic fields are frame dependent, with an observer travelling parallel to a moving point charge experiencing no field.
Similarly for a solenoid, a stationary observer on the ...
- 182
0
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0
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209
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Relativistic trajectory in a constant electric field
I'm trying to write the trajectory ($y^i = y^i(t),\ i \in \{1, 2, 3\},\ y^0 = t$) of a particle seen from an inertial reference frame, ${\cal O\ '}$, that moves along $y^2$ axis with constant speed $(...
- 1,597
0
votes
2
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71
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Meaning of the term speed of light in context of an object of non-zero mass
We know from GR that an object of non-zero mass cannot propagate at light. I have a problem with the term speed of light. Does it mean the relative speed of that object with another object or frame of ...
- 37
0
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80
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Why does a charged particle experience lorentz force while moving in a uniform magnetic field?
Firstly, when a charged particle moves in an infinite uniform linear magnetic field, it experiences a force.But,how does the charge or how do we differentiate that the relative position of charge is ...
- 21
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1k
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Relativity of simultaneity - under what conditions would two events happen simultaneously for frames $S$ and $S'$ when $S'$ is moving relative to $S$?
I feel like I have a fundamental confusion with the following exercise:
I'm confident with my answer in (a), which is that $B$ must be within the light cone of $A$, or that $B$ is causally connected ...
- 3,200
0
votes
1
answer
83
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Accelerating towards a photon
What will be the relative speed and motion between me and a photon if I would have accelerated towards a photon that is moving away from me?
Would it get away from at a slower velocity relative to me, ...
- 11