Register to reply

Archimedes Principle

by Kork
Tags: archimedes, principle
Share this thread:
Kork
#1
Mar19-12, 11:35 AM
P: 33
Hi :)

When I have a container with water and put a piece of metal down in the water while it's hanging on the string, I know that there will be two forces pulling it upwords:

B = δVg
and the string force T

But the force pulling it down, is that the gravitation? Or is it a force that equals to the weight of the piece of metal?
Phys.Org News Partner Physics news on Phys.org
'Squid skin' metamaterials project yields vivid color display
Team finds elusive quantum transformations near absolute zero
Scientists control surface tension to manipulate liquid metals (w/ Video)
Doc Al
#2
Mar19-12, 11:39 AM
Mentor
Doc Al's Avatar
P: 41,563
Quote Quote by Kork View Post
But the force pulling it down, is that the gravitation? Or is it a force that equals to the weight of the piece of metal?
Yes and yes. Gravity pulls the metal downward. (That gravitational force is the weight of the object.)
Kork
#3
Mar19-12, 11:41 AM
P: 33
I dont think I quite understand the buoyancy part.

If I tak a cointainer with water and take out an imaginaray area then the forces on the area would be the buoyancy and the gravitationa pulling down? Right?

Kork
#4
Mar19-12, 11:43 AM
P: 33
Archimedes Principle

Thank you very much!
Doc Al
#5
Mar19-12, 12:16 PM
Mentor
Doc Al's Avatar
P: 41,563
Quote Quote by Kork View Post
I dont think I quite understand the buoyancy part.

If I tak a cointainer with water and take out an imaginaray area then the forces on the area would be the buoyancy and the gravitationa pulling down? Right?
Not sure what you mean by 'take out an imaginary area'. The forces on the submerged object will include the buoyant force and the weight of the object. (Maybe you can restate the question.)


Register to reply

Related Discussions
Archimedes Principle Introductory Physics Homework 3
Archimedes principle again. Introductory Physics Homework 14
Archimedes Principle Introductory Physics Homework 2
Archimedes Principle... General Physics 6
Archimedes principle Introductory Physics Homework 1