From a complete ring of mass M and radius R, an are of making 30^(@) at centre is removed. What is the moment of inertia of the incomplete ring about an axis passing through the centre of the ring and _|_^(et) to the plane of the ring .

From a complete ring of mass M and radius R, an are of making 30^(@) a

1.	From a complete ring of mass M and radius R, an are of making 30^(@) at centre is removed. What is the moment of inertia of the incomplete ring about an axis passing through the centre of the ring and _\|_^(et) to the plane of the ring .
Answer» Solution :Mass of in COMPLETE ring`= M -(M)/(2pi)xx(pi)/(16)=(11M)/(12)` MOI of INERTIA of INCOMPLETE ring `I=[(11m)/(12)]R^(2)` `I=(11)/(12)MR^(2)`