Question

State True or False :A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity$\omega$. Another disc of the same dimensions but of mass M/4 is placed gently on the first disc coaxially. The angular velocity of the system now is $2 \omega /\sqrt{5}$.

Answer 1

Answer:

true is the right answer