a brief description of what is Archimedes principle?
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Answer:
What is Archimedes Principle?
Archimedes’ principle states that:
The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaces and acts in the upward direction at the center of mass of the displaced fluid.
The value of thrust force is given by the Archimedes law which was discovered by Archimedes of Syracuse of Greece. When an object is partially or fully immersed in a liquid, the apparent loss of weight is equal to the weight of liquid displaced by it.
If you look at the figure, the weight due to gravity is opposed by the thrust provided by the fluid. The object inside the liquid only feels the total force acting on it as the weight. Because the actual gravitational force is decreased by the liquid’s upthrust, the object feels as though its weight is reduced. The apparent weight is thus given by:
Apparent weight= Weight of object (in air) – Thrust force (buoyancy)
Archimedes principle tells us that this loss of weight is equal to the weight of liquid the object displaces. If the object has a volume of V, then it displaces a volume V of the liquid when it is fully submerged. If only a part of the volume is submerged, the object can only displace that much of liquid.
Archimedes Principle Formula
In simple form, the Archimedes law states that the buoyant force on an object is equal to the weight of the fluid displaced by the object. Mathematically written as:
Fb = ρ x g x V
Where,
Fb is the buoyant force
ρ is the density the fluid
V is the submerged volume
g is the acceleration due to gravity
Archimedes Principle Derivation
The mass of the liquid displaced is.
Mass = Density × Volume = ρ × V
This is because density (ρ) is defined as
Density,ρ = MassVolume = MV
Thus the weight of that displaced liquid is:
Weight = Mass × Acceleration due to gravity
W = M × g = ρ × V × g
Thus from Archimedes principle, we can write:
Apparent loss of weight = weight of water displaced = ρ×V×g
Thus the Thrust force is,
Thrust = ρ × V × g
Where,
ρ is the density of liquid
V is the volume of liquid displaced
The thrust force is also called the buoyant force because it is responsible for objects to float. Thus, this equation is also called the law of buoyancy.
Explanation:
Hope it helps you out.....
ARCHIMEDES PRINCIPLE
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is a law that states that a total force exterted on a body
immerses in a fluid whether it is submerged fully or partially and it will be equal to the weight of the water or fluid that body displaces.it was archimedes,a greek mathematician who discovered it.....
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