Fluid Mechanics of a metal cube

In summary, fluid mechanics is the study of how fluids, such as liquids and gases, move and interact with their surroundings. When applied to a metal cube, fluid mechanics can help determine the forces acting on the cube and how it will behave in different environments. This involves analyzing the cube's shape, size, and material properties, as well as the properties of the fluid it is immersed in. By understanding the principles of fluid mechanics, engineers can design and optimize metal cubes for various applications, from aerodynamics in aircraft design to hydrodynamics in shipbuilding.
  • #1
Cromptu
33
0
A metal cube is placed in an empty vessel. When water is filled in the vessel so that the cube is completely immersed in the water, the force on the bottom of the vessel in contact with the cube :

Ans: Will remain the same.

But how? Won't object exert an extra force which will be (h*density*g) * area of the cube?
 
Physics news on Phys.org
  • #2
That extra force you mention is in fact the weight of the cube.
 
  • #3
Noo, what I'm saying is that in the second case where the vessel is full of water, won't this force applied by the cube be less because of the buoyant force?
 
  • #4
I think the same. Are you sure this is the correct answer?
 
  • #5
Well according to the book, it is..
 
  • #6
What is the title of the book?
 
  • #7
Any buoyancy force acts only on the cube's bottom surface. If there is no water under the cube, there is no buoyancy force, and therefore the force on the bottom of the vessel in contact with the cube remains the same.
 
  • #8

Related to Fluid Mechanics of a metal cube

1. What is fluid mechanics?

Fluid mechanics is a branch of physics that deals with the study of fluids (liquids and gases) and their motion, as well as the forces acting on them.

2. How does fluid mechanics apply to a metal cube?

A metal cube can be considered a solid object, but it can also experience fluid-like behavior when immersed in a fluid, such as when it is sinking or floating in water. Therefore, fluid mechanics principles can be used to analyze the motion and forces acting on the metal cube.

3. What is the significance of studying the fluid mechanics of a metal cube?

Studying the fluid mechanics of a metal cube can help us understand the behavior of objects in fluids, such as ships and airplanes, which are important in various industries. It can also help us design and improve the performance of these objects.

4. What are the factors that affect the fluid mechanics of a metal cube?

The fluid mechanics of a metal cube can be affected by various factors, such as its size, shape, density, and the properties of the fluid it is immersed in. The velocity and direction of the fluid flow can also have an impact on its behavior.

5. How can fluid mechanics be used to predict the behavior of a metal cube in a fluid?

By applying the principles of fluid mechanics, such as Bernoulli's principle and Archimedes' principle, we can predict the forces and motion of a metal cube in a fluid. This can help us determine whether the cube will sink or float, as well as its stability and drag force.

Similar threads

  • Introductory Physics Homework Help
Replies
18
Views
2K
  • Introductory Physics Homework Help
Replies
13
Views
2K
  • Introductory Physics Homework Help
Replies
22
Views
2K
  • Introductory Physics Homework Help
Replies
30
Views
3K
  • Introductory Physics Homework Help
Replies
4
Views
1K
  • Introductory Physics Homework Help
Replies
8
Views
1K
  • Introductory Physics Homework Help
Replies
4
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
4
Views
2K
Back
Top