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When is angular momentum conserved in a physical system?

Dahlia Hagenes ∙

Lvl 10

∙ 1mo ago

Updated: 3/12/2025

Angular momentum is conserved in a physical system when there are no external torques acting on the system.

AnswerBot

∙ 1mo ago

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Q: When is angular momentum conserved in a physical system?

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Is angular momentum conserved in the system?

Yes, angular momentum is conserved in the system.

When is the angular momentum of a system not conserved?

The angular momentum of a system is not conserved when external torques are applied to the system. These torques can change the angular momentum by causing the system to rotate faster or slower or by changing the direction of its rotation.

When there is no external force acting on a body , which physical quantity is conserved?

Angular Momentum. The conserved quantity we are investigating is called angular momentum. The symbol for angular momentum is the letter L. Just as linear momentum is conserved when there is no net external forces, angular momentum is constant or conserved when the net torque is zero.

When is angular momentum conserved?

Angular momentum is conserved when there is no net external torque acting on a system. This principle is described by the law of conservation of angular momentum, stating that the total angular momentum of a system remains constant if there are no external influences causing a change.

Is the total angular momentum conserved when there is a two car collision?

In a two-car collision, the total angular momentum is conserved only if no external torque is acting on the system. If there is no net external torque exerted on the cars during the collision, the total angular momentum before the collision will be equal to the total angular momentum after the collision.

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Related Questions

Is angular momentum conserved in the system?

Yes, angular momentum is conserved in the system.

When is the angular momentum of a system not conserved?

The angular momentum of a system is not conserved when external torques are applied to the system. These torques can change the angular momentum by causing the system to rotate faster or slower or by changing the direction of its rotation.

When there is no external force acting on a body , which physical quantity is conserved?

Angular Momentum. The conserved quantity we are investigating is called angular momentum. The symbol for angular momentum is the letter L. Just as linear momentum is conserved when there is no net external forces, angular momentum is constant or conserved when the net torque is zero.

When is angular momentum conserved?

Angular momentum is conserved when there is no net external torque acting on a system. This principle is described by the law of conservation of angular momentum, stating that the total angular momentum of a system remains constant if there are no external influences causing a change.

Angular momentum about the center of the planet is conserved?

Angular momentum is conserved when there is no external torque acting on a system. For a planet, the net torque acting on it is negligible, so its angular momentum about its center will be conserved unless acted upon by an external force. This conservation principle is a consequence of the rotational symmetry of the system.

Is the total angular momentum conserved when there is a two car collision?

In a two-car collision, the total angular momentum is conserved only if no external torque is acting on the system. If there is no net external torque exerted on the cars during the collision, the total angular momentum before the collision will be equal to the total angular momentum after the collision.

What is angular mementum?

Angular momentum is a physical quantity that represents the rotational motion of an object around an axis. It is the product of an object's moment of inertia and its angular velocity. In simpler terms, it describes how fast an object is spinning around a fixed point.

What is a conserved physical quantity?

A conserved physical quantity is a property of a system that remains constant over time for an isolated system under certain conditions. This means that the total amount of that quantity within the system does not change, even as other processes take place. Examples include energy, momentum, and angular momentum in physics.

What is a conserved quantity?

A conserved quantity is a physical property of a system that remains constant over time, even as the system undergoes changes. Examples include energy, momentum, and angular momentum. The conservation of these quantities is a fundamental principle in physics and often allows us to make predictions about the behavior of a system.

Why is the law of inertia for rotating system in terms of angular momentum?

The law of inertia for rotating systems is described in terms of angular momentum because angular momentum is conserved in the absence of external torques, similar to how linear momentum is conserved in the absence of external forces according to Newton's first law. This conservation of angular momentum provides a useful way to analyze and understand the motion of rotating systems.

Why is angular momentum conserved during a collision, while linear momentum is not conserved?

Angular momentum is conserved during a collision because the total amount of rotational motion remains constant due to the principle of conservation of angular momentum. This is because there are no external torques acting on the system during the collision. On the other hand, linear momentum is not conserved during a collision because external forces, such as friction or air resistance, can act on the objects involved, causing a change in their linear motion.

What is an angular momentum?

Angular momentum is a measure of an object's rotational motion, calculated as the product of its moment of inertia and angular velocity. It is a vector quantity, meaning it has both magnitude and direction, and is conserved in the absence of external torques. Angular momentum plays a crucial role in understanding the behavior of rotating objects, such as planets orbiting the sun or a spinning top.

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