Question: The pole ( vertical beam ) has a uniform cross - section with an inner diameter of 4 . Assume a load of 4

The pole (vertical beam) has a uniform cross-section with an inner diameter of 4". Assume a load
of 400 lbs on the pole from a distance of 40 feet. Also, consider a safety factor of 4. The yield
strength of the pole is 80 Kpsi, and the elastic modulus is 30103 Kpsi. Determine the minimum
outer diameter of the pole to prevent buckling.
The pole ( vertical beam ) has a uniform cross -

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