An irregular object is suspended by a wire from its center. When a torque of 0.14N*m is applied to the object, it turns through an angel of 15.

An irregular object is suspended by a wire from its center. When a torque of 0.14N*m is applied to the object, it turns through an angel of 15. rad, and when it is released, it oscillates with a period of 1.2 s. Find the moment of inertia of the object