Understanding the Calculation for Shear Stress of Water

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Homework Help Overview

The discussion revolves around the calculation of shear stress in a fluid dynamics context, specifically concerning the interpretation of a variable in a given problem related to water. Participants are examining the reasoning behind a specific value used in the calculation.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the rationale behind using a value of 0.005/2 instead of 0.005 for the variable dy. There are also concerns raised about potential mistakes in the problem statement regarding the use of the term "acceleration" instead of "velocity."

Discussion Status

The discussion is focused on clarifying the assumptions made in the problem setup. Some participants express agreement on the need to reconsider the value of dy, while others are confirming the interpretation of the terms used in the problem statement.

Contextual Notes

There appears to be ambiguity in the problem statement regarding the definitions of certain variables, which is prompting participants to seek clarification.

goldfish9776
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Homework Statement


for the second photo , why the dy is 0.005/2 ? why not 0.005 ?

Homework Equations

The Attempt at a Solution

 

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Looks like a mistake to me. Also, it says acceleration where it means velocity.
 
haruspex said:
Looks like a mistake to me. Also, it says acceleration where it means velocity.
In your opinion , it should be 0.005 ?
 
goldfish9776 said:
In your opinion , it should be 0.005 ?
Yes.
 

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