NTesla's latest activity

You may have misunderstood what @TSny was asking, which was to write an expression for ##dt## in terms of ##dK##. And you have that, in...

If we consider an element of length ##\Delta x## at point B, which is just about to strike the table, then it's K.E at an instant ##t##...

Yes, thank you. That seems plausible. Here's my attempt using energy method: K.E of the chain, at the instant the upper end of the...

The "it" in that passage is the tube. The top of the tube exerts a downward force to impart downward momentum to the chain. The right...

As pointed out by @Steve4Physics, mechanical energy is not conserved. However, you can still solve it using energy concepts. (1) Find...

Much appreciated. Thank you. However, now the equation that I'm writing for the hanging part of the chain is cancelling out all...

There's no reason to go on resolving the equations further if the 1st equation itself seems incomplete or wrong to begin with. I expect...

I'm struggling to understand what you mentioned by "it's top" when you mentioned that "the chain is constrained not just by the bottom...

The drawing shows the chain descending vertically. Not in some sort of [evolving!] parabola. This implies that the chain is constrained...

Yes, that makes sense. So, the rightmost part of the mouth of the tube would exert a leftward force on the piece of the chain which is...

I would argue that instead of a tube, if the chain was kept on a table, and everything else remained the same, even then the chain would...

Could you kindly write for Newtonian mechanics. I have only studied Newtonian mechanics. And what is funny here, I don't understand.

Did you really thought that you were being helpful when you wrote that ? When I wrote the last equation in post#52, it was obvious to...

Which equation are you referring to ? If we happen to write separate equations for accelerations for the two parts of the chain...

I can see why it would seem like the water leaking from the cart scenario. In case we consider the momentum lost because of that piece...