Questions
A thin rod AB of mass 1 kg and length 1m is bent as its mid point c at an angle as shown in figure. PQ is the bisector of the angle ACB. Then moment of inertia of the bent rod about the line PQ is
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a
196kg−m2
b
148kg−m2
c
124kg−m2
d
112kg−m2
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Correct option is B
IPQ=13×0.5×(0.5)2×sin230o×2 kg−m2=148kg−m2Similar Questions
Two discs have mass ratio 1 : 2 and diameter ratio 2 : 1, then find the ratio of their moments of inertia.
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