A circular disc is rotating about its natural axis with

Last updated: 6/8/2023

A circular disc is rotating about its natural axis with angular velocity of 20 rad s A second disc of same mass gently placed on it co axially If the radius of disc is half of the radius of the first then they will start rotating with angular velocity of O 12 rad s O 8 rad s O 10 rad s O 16 rad s