Viscosity constant of a cylinder

AI Thread Summary
The discussion revolves around the concept of a viscosity constant for a rolling cylinder, specifically an empty barrel on a horizontal plane, factoring in air friction. A formula is presented, c = 1.76h·r, where h is the barrel's height and r is its radius, prompting questions about its derivation and the significance of the constant 1.76. Participants seek clarification on the meaning of "c" and inquire about the existence of tables or references that provide this information. The conversation highlights the need for further exploration into the physics of rolling motion and viscosity constants. Understanding the origins and applications of this formula is essential for solving related problems.
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Homework Statement


Does something like a viscosity constant of a cylinder exist? We are talking about an empty barrel rolling on a horisontal plane and the air friction.
On the classes we got something like this
c= 1.76h\cdot r where h is the barrel's height and r is the radius. How to find that formula? are there any tables for this? where did they get 1.76 from?

Thanks



Homework Equations





The Attempt at a Solution



 
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Does anyone know what c stands for in this post?
 

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