MadSci Network: Physics
Query:

Subject: can a liquid provide an upward and downward force at the same time?

Date: Thu Jul 17 15:58:23 2003
Posted by jason
Grade level: grad (science) School: No school entered.
City: Wakefield State/Province: Yorkshire Country: UK
Area of science: Physics
ID: 1058475503.Ph
Message:

I'm having some difficulty fully understanding buoyancy.
If I take a plunger of the type used to unblock drains and then i attach it to 
the bottom of a swimming pool using its "suction".
I think water pressure will be holding it at the bottom but also a bouyancy 
force will be trying to raise it to the surface of the pool.
There seems to be a contradiction, or am i missing something?
Can a liquid really provide a downward force as well as an upward force at the 
same time?
Thanks
Jason Bloomfield


Re: can a liquid provide an upward and downward force at the same time?

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