NTesla's latest activity

I've figured out where the sign convention went wrong, and have arrived at the correct answer. @haruspex, @kuruman : Appreciate your...

https://en.wikipedia.org/wiki/Moment_of_inertia disagrees. "The moment of inertia, otherwise known as the mass moment of inertia...

As I wrote in post #28, the moment of inertia of a body is only of interest in the context of rotation about some axis. To put that...

I would argue strongly against thinking of this "effective MoI" as really being an MoI. MoIs arise usually in three contexts: Angular...

Yes, you do seem to have a sign error in post #59, but where exactly it is depends which sense you are taking as positive for each...

yes, and it is already negative, before we proceed on to do factorization. Kindly see last line in post#59. So, eventually...

After factorizing, in the denominator I'm getting: ##(r - R)##, where ##(R - r)## should come. I've double checked my...

Factorise the denominator.

I don't understand how does that reduce to this equation. Even if we neglect the small r term in the numerator, we can't neglect the...

Here's the calculation taking the angular momentum about point C. ## L_{aboutC} = -mw_{C}(R-r)^2 + \frac{2}{5}mr^2w_{cm} ## and using...

Yes, i agree that that is what you were saying. I'm not sure why you thought I was disagreeing with you on this point. In the statement...

Not really, because I already do understand that. In my calculation that I have attached as pdf in post#24, I have already written that...

Agreed. I don't agree. There is a definite non-zero moment of Inertia about C, and finding it could possibly lead to increase in...

I'm not sure how that would help in finding out the moment of Inertia of the ball about the axis passing through point C, in the present...

my bad. I mistakenly wrote "wouldn't", when it should have been "would". The correct statement is: If the mass distribution doesn't...