A circular disc of mass 100 g and radius 10 cm' is making 2 rps about an axis passing through its centre and perpendicular to its plane. Calculate its kinetic energy.

A circular disc of mass 100 g and radius 10 cm' is making 2 rps about

1.	A circular disc of mass 100 g and radius 10 cm' is making 2 rps about an axis passing through its centre and perpendicular to its plane. Calculate its kinetic energy.
Answer» SOLUTION :`mgh = (1//2)IOMEGA^(2) = MGR =(1//2) xx (3//2) MR^(2) xx (V^(2)//r^(2)) , v=2sqrt(rg//3)`, (ii) speed =2v = `4sqrt(rg//3)`