NTesla's latest activity
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NNTesla reacted to haruspex's post in the thread Rolling without slipping on a curved surface with
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Yes, if you take the same sense as positive for both, but no law says you have to. If ##\theta## is the angle clockwise from vertical... -
NNTesla replied to the thread Rolling without slipping on a curved surface.Yes, they are as you've written about. Proceeding on the original question to find the time period, my calculation is not giving the...
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NNTesla reacted to kuruman's post in the thread Rolling without slipping on a curved surface with Like.
Let's change the symbols a bit to make things clear. You can view the motion as a pendulum that swings in a circular arc of length...
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NNTesla replied to the thread Rolling without slipping on a curved surface.I still don't fully understand what you meant to say in the last line here. My opinion is: ##\alpha_{cm}## and ##\alpha_{about C}##...
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NNTesla reacted to haruspex's post in the thread Rolling without slipping on a curved surface with Like.
No, ##\Delta s## is greater than that because of the curved surface. Consider e.g. R only marginally greater than r.
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NNTesla replied to the thread Rolling without slipping on a curved surface.yes. kindly see post#17 above.
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NNTesla replied to the thread Rolling without slipping on a curved surface.Agreed. You've mentioned that: we can infer that ##\alpha## is positive for rolling up the slope. I don't think I understand this line...
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NNTesla replied to the thread Rolling without slipping on a curved surface.Here's how I think that equation has been derived. ## \ddot{\theta }## is the angular acceleration about the point C (centre of...
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NNTesla replied to the thread Rolling without slipping on a curved surface.No, I don't think that's wrong. One can show any direction of frictional force(either up or down the incline) and the calculation will...
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NNTesla reacted to kuruman's post in the thread Rolling without slipping on a curved surface with Like.
"Indeterminate" is a word that a mathematician might use for a force vector that is zero. A physicist would say that a zero force is no...
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NNTesla replied to the thread Rolling without slipping on a curved surface.Well said. Agreed. Though I'm not sure I'm a mathematician or a physicist. I'm just someone trying to figure things out one at a time...
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NNTesla replied to the thread Rolling without slipping on a curved surface.Appreciate it very much, you taking time to help out. Will definitely wait for your answer. P.S: Hope your journey is worth the...
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NNTesla reacted to haruspex's post in the thread Rolling without slipping on a curved surface with Like.
I have confirmed your result independently. Will try to locate the error in the AI solution, but rightnowI am a passenger on a very...
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NNTesla reacted to haruspex's post in the thread Rolling without slipping on a curved surface with Like.
No, that is only an approximation for small displacements. But you don’t use it in what you posted, and the question as you have...
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NNTesla reacted to kuruman's post in the thread Rolling without slipping on a curved surface with Like.
Your last sentence is "The minus sign here means that the direction of friction is up the incline." Is it always up the incline? You...