Question

law of consrvation of angular momentum​

Answer 1

The law of conservation of angular momentum states that the angular momentum of a body that is the product of its moment of inertia about the axis of rotation and its angular velocity about the same axis, cannot change unless an external torque acts on the system.

In other words if external torques is zero, the angular momentum, often written as Iw where I is the moment of inertia and w (omega) is the angular velocity is a constant. Hence

Ii X Wi = If X Wf where subscript i refers to initial and f to final.

Answer 2

It states that the angular momentum of a body that os product of its movement of inertia about the axis the of rotation &it's angular velocity about the the same axis can't change unless an external torque acts on system .