Rotating discClassical Mechanics Level 3
A disc is rotating on a rough horizontal surface having coefficient of friction \( \mu=0.2 \) with an angular velocity \( \omega =8㎮ \) about an axis passing through center of mass and perpendicular to the plane. It stops rotating after some time. Find the time in seconds after which it stops. Assume the disc to be of uniform mass distribution and radius \( R=2m \).