Question

Изобразите графически силы,действующие на тело плавающее в воде,всплывающее на поверхность воды,тонущее в воде

Answer 1

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наверху тело,плавающее в воде
=
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тело,всплывшее на поверхность
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=
тело,тонущее в воде

Answer 2

Forces Acting on an Object Floating in Water

When an object is floating on the surface of water, there are several forces acting on it. These forces include:

1. Gravity: The force of gravity pulls the object downward towards the center of the Earth. This force can be represented by the symbol F_g.

2. Buoyant Force: The buoyant force is the upward force exerted by a fluid on an object immersed in it. It opposes the force of gravity and allows the object to float. The buoyant force can be represented by the symbol F_B.

3. Weight: The weight of the object is the force with which it is pulled downward due to gravity. It can be calculated using the formula W = mg, where m is the mass of the object and g is the acceleration due to gravity.

4. Upthrust: Upthrust is another term for the buoyant force. It is the force exerted by a fluid on an object that is partially or fully submerged in it. The upthrust force is equal to the weight of the fluid displaced by the object.

5. Drag Force: When an object moves through a fluid, such as water, there is a resistance force acting against its motion. This force is called the drag force and it opposes the object's motion. The drag force depends on factors such as the shape and size of the object, as well as the speed at which it is moving.

Graphic Representation of Forces

To visually represent the forces acting on a floating object, we can use a free-body diagram. In this diagram, we draw the object as a dot and indicate the forces acting on it with arrows. Here is a graphic representation of the forces acting on a floating object:


In the diagram: - The downward arrow represents the force of gravity (F_g). - The upward arrow represents the buoyant force (F_B). - The arrow pointing to the right represents the drag force.

Please note that the diagram is for illustrative purposes only and may not accurately represent the relative magnitudes of the forces.

Forces Acting on a Submerged Object

When an object is submerged in water, the forces acting on it are slightly different. The buoyant force is still present and opposes the force of gravity, but there is an additional force due to the pressure difference between the top and bottom of the object. This force is called the hydrostatic pressure force.

The hydrostatic pressure force is proportional to the density of the fluid, the acceleration due to gravity, and the volume of the fluid displaced by the object. It can be calculated using the formula F_P = ρghA, where ρ is the density of the fluid, g is the acceleration due to gravity, h is the depth of the object in the fluid, and A is the cross-sectional area of the object.

In summary, the forces acting on a submerged object include: - Gravity (F_g) - Buoyant force (F_B) - Hydrostatic pressure force (F_P)

Graphic Representation of Forces

To visually represent the forces acting on a submerged object, we can again use a free-body diagram. Here is a graphic representation of the forces acting on a submerged object:


In the diagram: - The downward arrow represents the force of gravity (F_g). - The upward arrow represents the buoyant force (F_B). - The arrow pointing to the right represents the hydrostatic pressure force (F_P).

Again, please note that the diagram is for illustrative purposes only and may not accurately represent the relative magnitudes of the forces.

I hope this helps! Let me know if you have any further questions.