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What is the moment of inertia of a square sheet of side 1 and mass per unit area u about an axispassing through the centre and perpendicular to itsplane(B)12(A) 412ul6Mul"(C)(D)126 |
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Answer» μl 4/6 EXPLANATION:Given that, SIDE = L Mass per unit area = μ Total mass M=μl 2 Now, the moment of inertia is I= MR 2/12 By perpendicular axis theorem I=I x +I y I=2I x I=2× μl 2 ×l 2/12 I= μl 4/6 Hence, the moment of inertia of a square sheet is μl 4/6 Hope this helps you:) |
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