The moment of inertia of a rod about an axis through its centre and perpendicular to it is (where is the mass and is the length of the rod). The rod is bent in the middle so that the two halves makes an angular of . The same axis would be

a)

b)

c)

d)

Question ID - 53211 :-

The moment of inertia of a rod about an axis through its centre and perpendicular to it is (where is the mass and is the length of the rod). The rod is bent in the middle so that the two halves makes an angular of . The same axis would be

a)

b)

c)

d)

1 Answer

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Answer Key : (b) -

(b)

Since, rod is bent at the middle, so each part of it will have same length as shown.

Moment of inertia of each part through its one end

Hence, net moment of inertia through its middle point is

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