Question

A ring has mass of 6 kg and radius of 2 m. What is the moment of inertia of this ring about a tangent to the circle of ring in its plane?

Answer 1

The M.I of ring about perpendicular axis=MR2

The MI of ring about a diameter by perpendicular axis method =MR2/2

therefore,the MI of the ring about the tangent in its plane by parallel axes method=1.5 MR(2)

substituting the given values which gives answer=36 kg m2