Question

Як пояснити виникнення сили, що виштовхує, при зануренні об'ємного тіла в рідину? СРОЧНО ПОМОГИТЕ!!!

Answer 1

Ответ:

це зумовлене тим, що тіло має меншу густину за густину рідини. Тим самим рідина виштовхує тіло на поверхню.

Answer 2

Explanation of the Force that Pushes a Solid Object Submerged in a Fluid

When a solid object is submerged in a fluid, such as a liquid, there is a force that pushes the object upward. This force is known as the buoyant force. The buoyant force is the result of the pressure difference between the top and bottom surfaces of the submerged object.

According to Archimedes' principle, the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. In other words, the buoyant force is equal to the weight of the fluid that would occupy the same volume as the submerged object.

The buoyant force can be explained by considering the pressure exerted by the fluid on the object. The pressure at any point in a fluid is equal in all directions. When a solid object is submerged in a fluid, the pressure at the bottom surface of the object is greater than the pressure at the top surface. This pressure difference creates an upward force that opposes the weight of the object, resulting in the buoyant force.

The magnitude of the buoyant force can be calculated using the formula:

F_buoyant = ρ_fluid * V_displaced * g

Where: - F_buoyant is the buoyant force - ρ_fluid is the density of the fluid - V_displaced is the volume of the fluid displaced by the object - g is the acceleration due to gravity

The buoyant force allows objects to float or experience an apparent weight loss when submerged in a fluid. It is the reason why objects feel lighter when immersed in water compared to in air.

Please note that the buoyant force only applies to objects that are partially or fully submerged in a fluid. If an object is completely outside the fluid, there is no buoyant force acting on it.

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