A Newtonian fluid fills the clearance between a shaft and a sleeve | Filo
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Class 11

Physics

Mechanics

Mechanical Properties of Fluids

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A Newtonian fluid fills the clearance between a shaft and a sleeve. When a force of is applied to the shaft, parallel to the sleeve, the shaft speed of . If a force of is applied instead, the shaft would move with a speed of

  1. None
Correct Answer: Option(c)
Solution: Using the relation . Here is the shear stress between the layers of the liquid which is equal to . is the change of velocity= and is the clearance which is equal to .
Thus we get

or

Thus we get

Substituting the values we get

Thus we get
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