Answer to Question #23603 in Mechanics | Relativity for jayan

Question

Please help me with& this simple logical problem. Suppose a 2 meters long pipe.
It's area of cross section is 1 meter square.The pipe is vertically placed.It's bottom end is closed.Inside the pipe, at the closed bottom end, there is 1 meter cube of air,closed with a disc. This disc is movable, like a piston in the cylinder.(The cylinder is the pipe.)
Now, I'm pressing on the disc downwards and compressing the air to 5 bar of pressure.(the volume of the air decreased.).
Now I'm pouring water on to the disc, 1000kg of water.
Now in the pipe,there is the compressed air at the very bottom, then the piston on it, and on the piston, filled with water of 1 meter height(1 meter cube,ie, 1 tone of weight).).
Now, if I release the pressure of the compressed air at the bottom SUDDENLY, to how much height the water column
will go up(will be shooted up) ?
Consider the atmospheric pressure which blocking downwards also.
PLEASE HELP