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Gurasees
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Why ain't momentum conserved when external force acts on the system?
Please explain with an example.
Please explain with an example.
dP/dt = 0 = F (external). hence P is constant.weirdoguy said:Why do you think it should be conserved? Do you know how conservation of momentum is derived?
Only time this is true is the case Fexternal = 0, hence no external force.Gurasees said:dP/dt = 0 = F (external). hence P is constant.
Momentum is conserved in a system that includes all the sources of your 'external force'.Gurasees said:Why ain't momentum conserved when external force acts on the system?
Momentum conservation is a fundamental law of physics that states that the total momentum of a closed system remains constant. This means that in a closed system, the total amount of momentum before a collision or interaction is equal to the total amount of momentum after the collision or interaction.
In a collision between two objects, the total momentum of the system before the collision is equal to the total momentum after the collision. This means that the sum of the individual momenta of the two objects before the collision is equal to the sum of their individual momenta after the collision. This is known as the law of conservation of momentum.
An external force is a force that acts on a system from outside of the system. It can change the momentum of the system by either increasing or decreasing its total momentum.
An external force can affect momentum conservation by changing the total momentum of a system. If an external force acts on a system, the system's total momentum will change and momentum conservation will no longer hold true. However, the law of conservation of momentum will still apply if the external force can be identified and accounted for in the calculations.
No, momentum conservation is a fundamental law of physics and cannot be violated. In any closed system, the total momentum will always remain constant. If it appears that momentum conservation is not holding true, it is likely due to an external force that was not accounted for in the calculations.