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Homework Statement
A closed container has a pressure P2 inside it. Outside there is the pressure P1 with P2 > P1. A pipe is enrolled on the grey disk. The pipe has a mass. The grey disk can rotate around itself.
http://imageshack.com/a/img905/3235/Egzdk8.png
1/ Draw all forces with P1=0
2/ Is there a torque on the grey disk/pipe ?
3/ Give the sum of forces on the container and on the pipe
Homework Equations
The Attempt at a Solution
1/ The pipe receives F1 and F2. The container receives F2, F4, F5 and F6.
http://imageshack.com/a/img908/8966/4ZFv5a.png
2/ Yes, the disk/pipe receives the torque F1 and F2
3/ The sum of forces on the pipe is 0. The sum of forces of the container is 0 if I don't take in account the centrifugal forces of the pipe because F2+F4+F5+F6 = 0 (in vector). But with centrifugal forces I don't find 0, where is the force that compensate centrifugal forces ?
http://imageshack.com/a/img908/592/R8gXrs.png I thought it is the gas but the pipe can be in that position:
http://imageshack.com/a/img540/2986/WqMDvD.png
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