Is the pressure everywhere on the inflated fluid pad the same?

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The discussion centers on whether the pressure throughout an inflated fluid pad is uniform. It concludes that pressure will equalize once the weight is stable, indicating that points X and Y will have the same pressure. Participants agree that the answer is A, confirming uniform pressure distribution. The concept of equilibrium is emphasized as crucial to understanding pressure in this context. Overall, the pressure in the fluid pad is consistent once stability is achieved.
Kevin Cheung
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Homework Statement
Adding weight on an inflated air pad, does the pressure on any point of the pad would be the same?
Relevant Equations
P=F/A
1660348024555.png

I guess the pressure would reach equilibrium after the weight is stable, that is when points X and Y are stable. So, the answer should be A?
 
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Thread 'Chain falling out of a horizontal tube onto a table'

Thread 'Chain falling out of a horizontal tube onto a table'

My attempt: Initial total M.E = PE of hanging part + PE of part of chain in the tube. I've considered the table as to be at zero of PE. PE of hanging part = ##\frac{1}{2} \frac{m}{l}gh^{2}##. PE of part in the tube = ##\frac{m}{l}(l - h)gh##. Final ME = ##\frac{1}{2}\frac{m}{l}gh^{2}## + ##\frac{1}{2}\frac{m}{l}hv^{2}##. Since Initial ME = Final ME. Therefore, ##\frac{1}{2}\frac{m}{l}hv^{2}## = ##\frac{m}{l}(l-h)gh##. Solving this gives: ## v = \sqrt{2g(l-h)}##. But the answer in the book...
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