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Question

A rod of uniform mass 2kg has a length of 5m. What will be its moment of inertia about a line perpendicular to the rod and passing through its middle point?

A
25 kgm2
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B
256kgm2
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C
253kgm2
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D
157kgm2
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Solution

The correct option is B 256kgm2
As proved and thoroughly explained in the previous video that,
{M.I}rod about its centre=ML212

Putting all the given values,
I=2×(5)212=256kgm2.

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