Questions
A thin wire of mass M and length L is turned into a ring. The moment of inertia about its will be :
detailed solution
Correct option is A
When the wire is bend to form a circular ring, length of wire is same as circumference of ring, 2πR=LRadius of ring is R=L2πMoment of inertia of ring about its axis is given asI=MR2=ML2π2I=14π2ML2.Talk to our academic expert!
Similar Questions
Circular disc X of radius R is made from an iron plate of thickness t, and another disc Y of radius 4 R is made from an iron plate of thickness..Then, the relation between the moment of inertia IX, and Iy is
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