Question

A newton ion fluid fills the clearance between a shaft and a sleeve. When a force of 800 N is applied to the shaft, parallel to the sleeve, the shaft attains a speed of 2 cm/s. If a force of

2.4 kN is applied instead, the shaft would move with a speed of -

• A. 2 cm/s
• B. 15 cm/s
• C. 6 cm/s
• D. None of these

Answer 1

Answer: (C)

6 cm/s

Answer 2

F = hA

=

$\frac { 800 } { 2400 }$ =

v₂ = 6 cm/s