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A reference frame is a particular coordinate system chosen to represent physical entities. The notion is most often used in special and general relativity to denote particular coordinates chosen on the spacetime manifold.

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2 answers
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Question about velocities in different reference frames

Suppose $\hat{x^{'}}, \hat{y^{'}}, \hat{z^{'}} $ are the unit vectors of an inertial frame and $\hat{x}, \hat{y}, \hat{z} $ are the unit vectors of a frame which maybe accelerating, rotating, whatever …
Neeladri Reddy's user avatar
3 votes
3 answers
473 views

If you are in a frame which is fixed to the Earth's center, but not rotating with the Earth,... [duplicate]

We usually treat the earth frame as approximately inertial. When we want to apply corrections, we use the centrifugal, coriolis and azimuthal forces. Are they all the corrections we would ever need? T …
Neeladri Reddy's user avatar
0 votes
1 answer
78 views

Doubt in fictitious forces chapter in Morin

The question is this - I know 2 is what the non-inertial frame measures, but isn't $\frac{d\mathbf{A}}{dt}$ the real thing, the physical thing? And you can write that too in terms of the unit vectors …
Neeladri Reddy's user avatar