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| 183_notes:localg [2021/02/04 23:32] – [Motion of Systems Due to Near-Earth Gravitational Forces] stumptyl | 183_notes:localg [2021/02/15 02:31] – [The Gravitational Acceleration] stumptyl |
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| $$\vec{F}_{Earth} = m\vec{g}$$ | $$\vec{F}_{Earth} = m\vec{g}$$ |
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| {{ 183_notes:localg.png?400}} | {{183_notes:week2_earth.png |
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| where the local gravitational acceleration is directed towards the center of the Earth. In your typical "flat-Earth" models,((By "flat-Earth", I mean [[http://en.wikipedia.org/wiki/Geographical_distance#Flat-surface_formulae|the distance over which the Earth is curved is much larger than any distance the system will travel]] not that [[https://en.wikipedia.org/wiki/Modern_flat_Earth_societies|the Earth is truly flat as some might think]].)) you will say the gravitational acceleration points "downward", which we typically consider to be the negative $y$-direction. In this case, | where the local gravitational acceleration is directed towards the center of the Earth. In your typical "flat-Earth" models,((By "flat-Earth", I mean [[http://en.wikipedia.org/wiki/Geographical_distance#Flat-surface_formulae|the distance over which the Earth is curved is much larger than any distance the system will travel]] not that [[https://en.wikipedia.org/wiki/Modern_flat_Earth_societies|the Earth is truly flat as some might think]].)) you will say the gravitational acceleration points "downward", which we typically consider to be the negative $y$-direction. In this case, |
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