For elastic solids, the stress must be shear. For Newtonian fluids, the stress must be
normal.
For elastic solids, stress is linearly related to strain rate, for Newtonian fluids, stress is
linearly related to strain.
For elastic solids, stress is linearly related to strain, for Newtonian fluids, stress
is linearly related to strain rate.
Weight is a body force, shear is a surface force.
Weight is a surface force, pressure force is a body force.
Shear is a body force, pressure is a surface force.
Shear is a surface force, pressure is a body force.
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10. Concept Question 1.06.12
The laminar velocity profile for a flow situation is shown below.
The figure that best describes the variation of shear stress with distance from the plate is
F
2
= 4 F
1
F
2
= 2 F
1
F
2
= F
1
F
2
= 0.5 F
1
F
2
= 0.25 F
1
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