Question

state and Prove the law of conservation of angular momentum​

Answer 1

The quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity.

Law:-

Principle of conservation of angular momentum states that, If no external torque acts on a system, the total angular momentum of the system remains constant. If I be the moment of inertia of a body about a given axis of rotation and w be its angular velocity, then I w = constant.

Answer 2

The law of conservation of angular momentum states that angular momentum is conserved when there is zero net torque applied to a system, where the system is the object or objects that are rotating. ... When the angular momentum of a system is conserved, it means that there is no change in total angular momentum.