Physics, asked by apurvashetty979, 9 months ago

Two uniform thin identical rods of mass M and length l are joined together to form a cross. What would be the moment of inertia of the cross about one of the rod at its axis?

Answers

Answered by sadiyasnobar

Answer:

Consider the line perpendicular to the plane of the figure through the centre of the cross. The moment of inertia of each rod about this line (say about z- axis) I′=Ml2/12. Hence the moments of inertia of the cross Iz=2Iz′=Ml2/6.

Explanation:

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