A closed chain `A` of mass `m` = 0.36kg is attached to a vertical rotating shaft by means of thread

A closed chain `A` of mass `m` = 0.36kg is attached to a vertical rotating shaft by means of thread showin in fig. and rotated with a constant angular velocity `omega=35rad//s`. The thread forms an angle `theta=45^(@)` with the vertical. Then the tension of the thread is

thread