Answered: A fluid is placed between two parallel…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A fluid is placed between two parallel plates with area of 2 m2. The lower plate is pulled with 0.4 N with velocity of 0.4 m/s (in x direction), while the upper plate is pulled in other direction (in –x direction) with 0.75 N with velocity of V2 m/s. If the distance between the plates is 1 cm, the viscosity of fluid is 0.01 kg/m.s, find V2.
1. Calculate ryx (from the eqn. ryx = ∑ F), consider directions when summing up the forces!
2. Use Newton’s law of viscosity to calculate V2

= 0.75 N
F2 =
V2 =? m/s
8 = 1 cm
F =
= 0.4 N
A = 0.2 m²
V1
= 0.4 m/s

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