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greyhound's latest activity
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greyhound
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erobz's post
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Range of projectile launched from a non-rotating spherical planet
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Close as I (think) can get for the ODE that would yield ##r(t)## (the radial coordinate- not range): $$ \ddot r - \frac{v_o^2R^2}{r^3}...
Apr 22, 2024
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greyhound
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Baluncore's post
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Range of projectile launched from a non-rotating spherical planet
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Without an atmosphere, I would expect the projectile to follow an elliptical path, a partial orbit, with the near focus at the centre of...
Apr 18, 2024
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greyhound
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Range of projectile launched from a non-rotating spherical planet
.
Hopefully you can make out the situation below, but that's what I'm looking for. I'm assuming that ##v_0## is small so that it doesn't...
Apr 18, 2024
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greyhound
replied to the thread
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Range of projectile launched from a non-rotating spherical planet
.
I think there might be an issue with your equation. It looks like your answer for range would have units of length##^2##.
Apr 18, 2024
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greyhound
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DaveC426913's post
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Why does a coin take 2 full rotations around another coin?
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Apr 18, 2024
G
greyhound
replied to the thread
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Range of projectile launched from a non-rotating spherical planet
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Basically I'm assuming that gravity points towards the planet's centre i.e. ##\vec{a}=-g\hat{r}##. You know what, let's the situation...
Apr 18, 2024
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greyhound
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Range of projectile launched from a non-rotating spherical planet
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I figured this would be a problem in some classical mechanics book but so far I can't find an answer anywhere. Assume there is no drag...
Apr 18, 2024
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