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Help! Moment of Inertia

  • Thread starter klopez
  • Start date
22
0
1. Three identical thin rods, each of length L and mass m, are welded perpendicular to one another as shown below. The assembly is rotated about an axis that passes through the end of one rod and is parallel to another. Determine the moment of inertia of this structure. (Answer in terms of m and L.)

Itotal =

I need some serious help here! I have one hour to submit this problem. I looked up a solution to this and they gave me (m*L^2)/6
But WebAssign said it was wrong.

Please I need this solution in less than an hour! Thanks

-Kevin
 

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