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

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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.
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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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Thread 'Reference frames, center of rotation, etc'

Topic about reference frames, center of rotation, postion of origin etc Comoving ref. frame is frame that is attached to moving object, does that mean, in that frame translation and rotation of object is zero, because origin and axes(x,y,z) are fixed to object? Is it same if you place origin of frame at object center of mass or at object tail? What type of comoving frame exist? What is lab frame? If we talk about center of rotation do we always need to specified from what frame we observe?
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