Physics Help Forum Fluid statics

 Kinematics and Dynamics Kinematics and Dynamics Physics Help Forum

 Dec 14th 2015, 10:32 AM #1 Junior Member   Join Date: Dec 2015 Posts: 5 Fluid statics A piston of mass M = 3kg and radius R = 4cm has a hole into which a thin pipe of radius r = 1cm is inserted. The piston can enter a cylinder tightly and without friction, and initially it is at the bottom of the cylinder. 750gm of water is now poured into the pipe so that the piston & pipe are lifted up as shown. Find the height H of water in the cylinder and height h of water in the pipe.
 Dec 16th 2015, 01:20 PM #2 Senior Member     Join Date: Apr 2008 Location: Bedford, England Posts: 668 I have looked at this several times and can't make it work. In particular I feel I need to know the density of the piston, i.e will it float! Have you forgotten to include the height of the piston from the original question? Your post includes the phrase "as shown", does the picture include this missing information? This looks like a homework question, so be aware that while we are happy to try to point you in the correct direction we will not outright give you the answer. __________________ You have GOT to Laugh !

 Tags fluid, fuild statics, statics