Consider a uniform wire of mass M and length L. It is bent into a semi-circle. Its moment of inertia about a line perpendicular to the plane of the wire passing through centre is :
Consider a uniform wire of mass M and length L. It is bent into a semi-circle. Its moment of inertia about a line perpendicular to the plane of the wire passing through centre is :
Option 1 -
ML²/π²
Option 2 -
2ML²/5π²
Option 3 -
ML²/2π²
Option 4 -
ML²/4π²
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= 3.15 kg m2
Distance of CM from 5 kg = 10*2/15 = 4/3m
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