InterviewSolution
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InterviewSolution
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Illustrated is a uniform cubical block of mass `M` and side `a` Mark the correct statement (s) A. The moment of inertia about axis `A`, passing through the centre of mass is `IA=1/6Ma^(2)`B. The moment of inertia about axis `B`, which bisects one of the cube faces is `lB=5/12Ma^(2)`C. The moment of inertia about axis `C`, along one of the cube edge is `IC=2/3Ma^(2)`D. The moment of inertia about axis `D`, whch bhisects one of the horizontal cube face is `7/12` |
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Answer» Correct Answer - A::B::C Parallel axis therorem, check the distasnce carefully. `I_(D)=I_(B)("symmetric")` `I_(B)=I_(A)+M(a/2)^(2)=5/12Ma^(2)` `I_(C)=I_(A)+M(a/(sqrt(2)))^(2)=2/3Ma^(2)` |
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