190_Problem CHAPTER 9

190_Problem CHAPTER 9 - PROBLEM 9.142 The piece of roof...

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PROBLEM 9.142 The piece of roof flashing shown is formed from sheet copper that is 0.032 in. thick. Knowing that the specific weight of copper is 558 lb/ft 3 , determine the mass moment of inertia of the flashing with respect to each of the coordinate axes. SOLUTION Have copper mV ρ = copper tA g γ = Then 12 mm = () 3 3 2 2 558 lb/ft 1 ft 0.032 in. 48 6 in 12 in. 32.2 ft/s  × × ×   2 0.092422 lb s /ft =⋅ Using Fig. 9-2B for components 1 and 2, have Now ( ) ( )( ) ( ) 1 2 and x xx x x I II =+ = Then 2
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.

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