PROBLEM 9.34 Determine the moment of inertia and the radius of gyration of the shaded area with respect to the yaxis. SOLUTION First note that 123AAAA=−−( )( ) ( )( )100 mm 120 mm80 mm40 mm=−( )( )280 mm20 mm7200 mm−=22(12 00032001600)mm7200 mm−=Now ( ) ( ) ( )yyyyIIII=−−where ()36411120 mm 100 mm1010 mm12yI==×32140 mm 80 mm1.7067
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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.