Question

The angular velocity of circular disc of radius 2cm is 20 rad/s calculate the linear velocity of disc ??????????

Answer 1

Linear velocity is connected to angular as

$v=R\cdot\nu$

where $R$ is radius and nu is angular velocity. Hence linear velocity is:

$v=2cm\cdot 20rad/s=40\,cm/s=0.4\,m/s$