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  • A Newtonian fluid fills the clearance between a shaft and a sleeve. When a force of is

A Newtonian fluid fills the clearance between a shaft and a sleeve. When a force of 800 \mathrm{~N} is applied to the shaft, parallel to the sleeve, the shaft attains a speed of  1.5 \mathrm{~cm} / \mathrm{sec}. If a force of 2.4 \, \, \mathrm{kN} is applied instead, the shaft would move with a speed of

Option: 1

\mathrm{1.5 \mathrm{~cm} / \mathrm{sec}}


Option: 2

\mathrm{13.5 \mathrm{~cm} / \mathrm{sec}}


Option: 3

\mathrm{4.5 \mathrm{~cm} / \mathrm{sec}}


Option: 4

\mathrm{None}


Answers (1)

best_answer

\mathrm{\begin{aligned} & 800=\eta A \cdot \frac{1.5}{x} \\ & 2400=\eta A \frac{V}{x} \\ & V=4.5 \mathrm{~cm} / \mathrm{sec} . \end{aligned}}

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Irshad Anwar

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