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The term conservation refers to something which doesn’t change. Angular momentum is the rotational analogue of linear momentum. In this article, Let’s study the law of conservation of angular momentum. Table of Contents. What is Conservation of Angular Momentum? Torque and Angular Momentum Relationship.
Use the law of conservation of angular momentum to determine the angular velocity \(\omega\) of the combination. What fraction of the initial kinetic energy is lost in the coupling of the flywheels? Figure \(\PageIndex{3}\): Two flywheels are coupled and rotate together.
In the case of the Earth the primary conserved quantity is the total angular momentum of the solar system because angular momentum is exchanged to a small but important extent among the planets and the Sun.
Conservation of angular momentum is one of the key conservation laws in physics, along with the conservation laws for energy and (linear) momentum. These laws are applicable even in microscopic domains where quantum mechanics governs; they exist due to inherent symmetries present in nature.
conclude that conservation of angular momentum is an independent physical law, and until a contradiction is observed, our physical understanding must be guided by it.
Understand the analogy between angular momentum and linear momentum. Observe the relationship between torque and angular momentum. Apply the law of conservation of angular momentum. Why does Earth keep on spinning? What started it spinning to begin with? And how does an ice skater manage to spin faster and faster simply by pulling her arms in?
