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A 23.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 4.50 cm in diameter. A strong wind bends the pole much as a horizontal force of 900 N exerted at the top would. How far to the side (in mm) does the top of the pole flex?

Question

A 23.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 4.50 cm in diameter. A strong wind bends the pole much as a horizontal force of 900 N exerted at the top would. How far to the side (in mm) does the top of the pole flex?

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Step 1

The elastic modulus of the aluminium is

F/A
S =
AL L
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F/A S = AL L

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Step 2

Use the equation (I) to find th...

ALFL
AS
FL
[2]
|(TR2)S
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ALFL AS FL [2] |(TR2)S

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Physics

Mechanical Properties of Matter

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