From a circular cardboard of uniform thickness and mass M , a square disc of the maximum possible area is cut. If the moment of inertia of the square with the axis of rotation at the centre and perpen

Question

From a circular cardboard of uniform thickness and mass M , a square disc of the maximum possible area is cut. If the moment of inertia of the square with the axis of rotation at the centre and perpendicular to the plane of the disc is M a 2 6 , the radius of the circular cardboard is

TestHub · Accepted Answer

According to the question, In the triangle O A B , ( O B ) 2 = ( O A ) 2 + ( A B ) 2 Or r 2 = ( a 2 ) 2 + ( a 2 ) 2 r = 2 a 2 4 = a 2

Physics - Rotation Question with Solution | TestHub

Options:

Doubts & Discussion