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The movement of a piston head in a cylinder depends on the contents of the cylinder. If the cylinder is filled with concrete, the piston will not move regardless of the force applied. In the case of an incompressible liquid, the piston remains stationary until the force exceeds the cylinder's structural limits. A vacuum allows any applied force to move the piston to the end of the cylinder. Clarifying the specific scenario will yield more accurate answers regarding piston movement.
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racool said:i got a small doubt.. can any1 please xplain me. if we apply a certain force"F" on cylinder of area of cross section A=pi*d^2/4(thatis,the diameter of cyllinder is d),then how much distance will the piston head move ??
It depends on what's inside the cylinder.
- If we've packed the cylinder of concrete and allowed it to harden, the piston won't move at all, no matter how much force we apply.
- If the cylinder has no leaks and is full of an incompressible liquid, the piston won't move but the cylinder will burst if we apply enough force.
- If there's nothing in the cylinder at all, just vacuum, any force at all will cause the piston will move all the way to end of the cylinder
- If there is some compressible gas in the cylinder...
If you could clarify your question you'll get better answers.
As you can see from the picture, i have an uneven U-shaped tube, sealed at the short end. I fill the tube with water and i seal it. So the short side is filled with water and the long side ends up containg water and trapped air.
Now the tube is sealed on both sides and i turn it in such a way that the traped air moves at the short side.
Are my claims about pressure in senarios A & B correct?
What is the pressure for all points in senario C?
(My question is basically coming from watching...
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