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The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called
- a)Newton's law of motion
- b)Newton's law of cooling
- c)Newton's law of viscosity
- d)Newton's law of resistance
Correct answer is option 'D'. Can you explain this answer?
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The force exerted by a moving fluid on an immersed body is directly pr...
Newton's Law of Resistance in Fluid Mechanics
Newton's Law of Resistance is a fundamental principle of fluid mechanics. It explains the force exerted by a moving fluid on an immersed body. Let us discuss this law in detail.
Statement of Newton's Law of Resistance
"The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body."
Explanation of Newton's Law of Resistance
The law states that the force exerted by a fluid on a body depends on the rate of change of momentum. This means that if the momentum of the fluid changes due to the presence of a body, then the fluid will exert a force on the body.
The momentum of a fluid can change due to various reasons, such as:
- The body may deflect or redirect the flow of fluid.
- The body may create vortices or eddies in the fluid.
- The body may cause turbulence or separation of the fluid.
The force exerted by the fluid on the body is proportional to the rate of change of momentum. This means that if the momentum of the fluid changes rapidly, then the force exerted by the fluid will be higher.
The law also implies that the force exerted by the fluid is opposite in direction to the direction of flow. This is because the change in momentum of the fluid is opposite to the direction of flow.
Applications of Newton's Law of Resistance
Newton's Law of Resistance has numerous applications in fluid mechanics. Some of the common applications are:
- Calculation of drag force on a body moving through a fluid.
- Design of hydraulic structures, such as dams and weirs.
- Analysis of flow around ships and submarines.
- Optimization of aerodynamic designs for cars, airplanes, and other vehicles.
Conclusion
Newton's Law of Resistance is a fundamental principle of fluid mechanics. It explains the force exerted by a moving fluid on an immersed body. The law states that the force is proportional to the rate of change of momentum due to the presence of the body. This law has numerous applications in fluid mechanics and is essential for the design and analysis of various structures and vehicles.
Newton's Law of Resistance is a fundamental principle of fluid mechanics. It explains the force exerted by a moving fluid on an immersed body. Let us discuss this law in detail.
Statement of Newton's Law of Resistance
"The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body."
Explanation of Newton's Law of Resistance
The law states that the force exerted by a fluid on a body depends on the rate of change of momentum. This means that if the momentum of the fluid changes due to the presence of a body, then the fluid will exert a force on the body.
The momentum of a fluid can change due to various reasons, such as:
- The body may deflect or redirect the flow of fluid.
- The body may create vortices or eddies in the fluid.
- The body may cause turbulence or separation of the fluid.
The force exerted by the fluid on the body is proportional to the rate of change of momentum. This means that if the momentum of the fluid changes rapidly, then the force exerted by the fluid will be higher.
The law also implies that the force exerted by the fluid is opposite in direction to the direction of flow. This is because the change in momentum of the fluid is opposite to the direction of flow.
Applications of Newton's Law of Resistance
Newton's Law of Resistance has numerous applications in fluid mechanics. Some of the common applications are:
- Calculation of drag force on a body moving through a fluid.
- Design of hydraulic structures, such as dams and weirs.
- Analysis of flow around ships and submarines.
- Optimization of aerodynamic designs for cars, airplanes, and other vehicles.
Conclusion
Newton's Law of Resistance is a fundamental principle of fluid mechanics. It explains the force exerted by a moving fluid on an immersed body. The law states that the force is proportional to the rate of change of momentum due to the presence of the body. This law has numerous applications in fluid mechanics and is essential for the design and analysis of various structures and vehicles.
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The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is calleda)Newton's law of motionb)Newton's law of coolingc)Newton's law of viscosityd)Newton's law of resistanceCorrect answer is option 'D'. Can you explain this answer?
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