A What Is the Expression for Settling Velocity in a Rotating Field?

Thread starter physics_rocky
Start date Jul 22, 2024
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The settling velocity, or terminal velocity, occurs when the drag force equals gravitational force. In a rotating field, this terminal settling velocity is decreased compared to a non-rotating scenario. Participants are encouraged to share their research findings and any calculations they have attempted. The discussion emphasizes the need for collaboration and sharing of knowledge to derive the expression for terminal velocity in a rotating field. Engaging with existing resources and community input is crucial for understanding this concept.

Jul 22, 2024

physics_rocky

TL;DR: Hi there, The settling velocity is terminal velocity at which drag force is equal to the gravity. When the sphere is in rotating field the terminal settling velocity is reduced. What will be the expression for it in rotating field?

Hi there,

The settling velocity is terminal velocity at which drag force is equal to the gravity. When the sphere is in rotating field the terminal settling velocity is reduced. What will be the expression for it in rotating field?

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Jul 22, 2024

berkeman

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Welcome to PF.

Can you show us what you have done so far? What have you found in your Internet searching so far?

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Power = Force v Speed Power of my horse = 104kgx9.81m/s^2 x 0.732m/s = 1HP =746W Force/tension in rope stay the same if horse run at 0.73m/s or at 15m/s, so why then horse need to be more powerfull to pull at higher speed even if backward force at him(rope tension) stay the same? I understand that if I increase weight, it is hrader for horse to pull at higher speed because now is backward force increased, but don't understand why is harder to pull at higher speed if weight(backward force)...

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