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230_Problem CHAPTER 9 - PROBLEM 9.161 The figure shown is...

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PROBLEM 9.161 The figure shown is formed of 0.075-in.-diameter aluminum wire. Knowing that the specific weight of aluminum is 3 0.10 lb/in , determine the products of inertia , xy I , yz I and zx I of the wire figure. SOLUTION First note m V V AL g g γ γ ρ = = = Specific weight of aluminium 3 3 0.10 lb/in 172.8 lb/ft = = Then ( ) 2 3 2 0.075 ft 172.8 lb/ft 4 12 32.2 ft/s m L π = ( ) 3 2 2 0.16464
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