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werson tan
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Homework Statement
i don't understand the statement 1 and 2 , can someone help to explain ?
for 1 , does the author mean Fh= Fv ??
for 2 , does the author mean Fv = Fh + W ? but in statement 1 , Fh already = Fv
Hi, werson tan.werson tan said:Homework Statement
i don't understand the statement 1 and 2 , can someone help to explain ?
for 1 , does the author mean Fh= Fv ??
for 2 , does the author mean Fv = Fh + W ? but in statement 1 , Fh already = Fv
The three main types of forces that act on a submerged surface are buoyant force, hydrostatic pressure, and shear force. Buoyant force is the upward force exerted by a fluid on an object that is partially or fully submerged. Hydrostatic pressure is the force exerted by a fluid at a certain depth due to the weight of the fluid above it. Shear force is the force that acts parallel to the surface of an object, causing it to move or deform.
The buoyant force on a submerged surface can be calculated using Archimedes' principle, which states that the buoyant force is equal to the weight of the fluid that the object displaces. This can be represented by the equation FB = ρVg, where FB is the buoyant force, ρ is the density of the fluid, V is the volume of the displaced fluid, and g is the acceleration due to gravity.
The center of pressure is the point at which the total force acting on a submerged surface is considered to act. It is important to consider the center of pressure when analyzing the forces on a submerged surface as it can affect the stability and equilibrium of the object. If the center of pressure is not aligned with the center of mass, the object may experience a turning moment, causing it to tip or rotate.
The shape of a submerged surface plays a significant role in determining the forces acting on it. For example, a curved surface will experience a different distribution of hydrostatic pressure compared to a flat surface. Additionally, the shape of a surface can also affect the magnitude and direction of the shear force acting on it.
Internal forces on a submerged surface are generated within the object itself, such as stress and strain on the surface material. External forces, on the other hand, are caused by the interaction between the surface and the surrounding fluid, such as the buoyant force and hydrostatic pressure. Both types of forces need to be considered when analyzing the behavior of a submerged surface.