Is Zero Net Force Required for Momentum Conservation?

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For momentum conservation in a system, the net force acting on that system must be zero. This principle applies similarly to angular momentum, where the net torque must also be zero for conservation. The discussion confirms that a zero net force is essential for maintaining total momentum. Understanding these conditions is crucial for solving related physics problems. Overall, momentum conservation is directly linked to the absence of external forces.
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Homework Statement


What has to be true in order for the momentum of a system to be conserved?


Homework Equations





The Attempt at a Solution


I am thinking the net force needs to be zero.

Just wanting to confirm this is correct.

Thanks in advance
 
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In order for the total momentum of a system to be conserved, the net force on that system must be zero. In order for the total angular momentum to be conserved, the net torque must be zero.
 

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