- #1
sphyics
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what is "conservation of angular momentum".
Conservation of angular momentum is a fundamental law of physics that states that the total angular momentum of a closed system remains constant over time, regardless of any internal changes or external forces acting on the system. In simpler terms, it means that the spinning or rotating motion of an object will remain constant unless an external torque is applied.
The formula for calculating angular momentum is L = Iω, where L is the angular momentum, I is the moment of inertia, and ω is the angular velocity.
Linear momentum refers to the motion of an object in a straight line, while angular momentum refers to the motion of an object around an axis. Linear momentum is calculated by multiplying an object's mass by its velocity, while angular momentum is calculated by multiplying an object's moment of inertia by its angular velocity.
Conservation of angular momentum can be seen in many real-world situations, such as the rotation of planets, the spinning of a top, and the movement of a figure skater during a spin. It also plays a crucial role in understanding the motion of celestial bodies and the conservation of energy in mechanical systems.
Yes, angular momentum can be changed if an external torque is applied to the system. This can happen through the transfer of angular momentum from one object to another or through a change in the moment of inertia or angular velocity of the system. However, the total angular momentum of a closed system will always remain constant.