All Questions
Tagged with galilean-relativity velocity
10 questions
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Why is it "forbidden" to use EM waves as a way of detecting motion in two different inertial frames?
Constant motion can not be detected by neither particles (because of inertia) nor mechanical waves ( because they need a medium ). However when you consider light for example and assume it does not ...
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Velocity addition as a special case of change of reference frame
In this question, I want to restrict the discussion to classical mechanics as understood before 1900; that is, to exclude any discussion of relativity (however, if there is a neat generalization I ...
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3
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How to show the velocity of free motion is constant in Galileo's relativity principle?
Picture below is from Landau & Lifshitz's Mechanics. How to get the red line from green line?
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Do non-inertial effects impact velocity, or just acceleration?
Suppose you measure motion in a non-inertial frame and get fictitious acceleration terms from centrifugal and Coriolis forces. Will these terms produce fictitious velocity terms?
Dumb question, and I ...
user286432
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Relative Velocity and Mass
Under what conditions can you just add velocities? For example if I throw a paper ball in the air in a 1m/s wind the ball should move in that direction at 1m/s as it falls according to relative ...
- 157
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Is there a Group that covers (classical) relative velocities?
I'm not very well versed in Abstract algebra and group theory, so this question might not make sense to begin with, but I got an idea when reading up on how to rigorously calculate relative velocities....
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How do Galilean transformations give the idea of vector velocity additions or subtractions?
I have been reading an article on Galilean transformation from Wikipedia
and encountered a sentence, quoted- 'In essence, the Galilean transformations embody the intuitive notion of addition and ...
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6
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2
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Is Velocity Really a Vector?
In non-relativistic physics, physical quantities $Q$ are characterized by how they transform under a Galilean transformation $g \in \mathcal{G}$.
$$ Q \rightarrow Q' = D[g]Q$$
where $D[g]$ is the ...
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Calculating relative velocity in three dimensional space
Given two points $\mathcal{A}$ and $\mathcal{B}$ in $\mathbb{R^3}$ whose position and velocity vectors are, respectively:
$$\mathbf{r_A}=\begin{pmatrix}r_{A_{x}}\\r_{A_{y}}\\r_{A_{z}}\end{pmatrix}$$
$$...
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5
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Special Relativity, 2nd Postulate -- Why? [duplicate]
As a lowly physics undergrad who has been chewing on this 2nd postulate of special relativity for a year or more, I simply can't wrap my head around reasons why it is true or how Einstein might have ...
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