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Which of the following quantities is conserved in the absence of external torque
Which of the following quantities is conserved in the absence of external torques?
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Practice Questions
1 question
Q1
Which of the following quantities is conserved in the absence of external torques?
Linear momentum
Angular momentum
Energy
All of the above
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In the absence of external torques, angular momentum is conserved.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following quantities is conserved in the absence of external torques?
Solution:
In the absence of external torques, angular momentum is conserved.
Steps: 6
Show Steps
Step 1: Understand what a torque is. Torque is a force that causes an object to rotate.
Step 2: Learn about external torques. External torques come from outside forces acting on an object.
Step 3: Recognize that if there are no external torques acting on a system, it means the system is isolated from outside influences.
Step 4: Know what angular momentum is. Angular momentum is a measure of how much motion an object has while rotating.
Step 5: Remember the principle of conservation. In physics, when a quantity is conserved, it means it stays the same over time.
Step 6: Conclude that in the absence of external torques, the angular momentum of the system remains constant.
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