Please Help, double check your answers please Person 1X A12-Area Moments of 1 \"

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Please Help, double check your answers please

Person 1X A12-Area Moments of 1 " WileyPLUS © i lome | Chegy.com x Secure https:fedugen.wileyplus.com/edugen/Iti/main.uni a Meriam and Kraige, Fngineering Mechanics: Statics, Be Helo I ING PRINTER VERSION BACK NEXT ASSIGNMENT RESOURCES Appendix A, Problem A/040 Deterrriie the percent reductions in both area and area morrient of inertia about the y-axis caused by removal of the eclangular cutout from the rectangular plate of base b arid height h 412 Rending urstion A/0S .y Reading Question A/07 0.11h A 00 0.11h ppendix A, Problerr 0 0.61 42011 Appendix A, Problem 4059 Answers Review Score Percent reduction in area Percent reduction in area iorment of inertia TO TEXT Question Attempts: 0 ol 4 used SAVE FOR LATER SUBMIT

Explanation / Answer

a] percentage reduction in area = 100*(h-0.11h-0.11h)*0.61b/hb = 47.58 %

b] initial moment of inertia = hb^3/3

Final moment of inertia = 0.22hb^3/3 +0.78h(0.39b)^3/3 = 0.26627 hb^3/3

percentage decrease = 100*[1-0.26627]*(hb^3/3)/(hb^3/3) = 73.373 %

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