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- How is momentum conserved if you lose kinetic energy?
Momentum is conserved in collisions, even when kinetic energy (KE) is lost, because momentum is a vector quantity dependent on mass and velocity, while KE is a scalar related to the square of velocity In inelastic collisions, some KE is transformed into other forms of energy, such as heat or vibrations, which explains the loss of KE without violating momentum conservation The discussion
- Energy is not conserved vs. energy is conserved: Friedmann Equations . . .
I "Energy is not conserved" vs energy is conserved: Friedmann Equations timmdeeg Mar 20, 2023 Energy Friedmann Friedmann equations
- How to spot conserved quantities from Lagrangians
For example, what is conserved if V = V (x^2+y^2, z) I need to know how to spot the conserved quantities generally I know that the total energy is conserved unless there is explicit dependence on time, so don't worry about that one im looking for conservation with respect to angular linear momentum components
- Why momentum is conserved when a gun fires? (conceptual question)
I understand that conservation of motion comes from the action and reaction pairs of newton's third law When it is triggered, two forces appear that cancel when analyzed as a system My question is how is it that momentum is conserved if before the shot there was no force in the system and
- Conserved quantities under the Lorentz boost - Physics Forums
The discussion centers on the relationship between symmetries in physics and their associated conserved quantities, particularly under Lorentz boosts It highlights that while conservation of momentum and energy imply constant total momentum and energy, they do not dictate the time dependence of the center of mass, necessitating an independent conservation law The conservation law associated
- Mass conservation in black holes • Physics Forums
Is the mass of gravitationally collapsed matter conserved in a black hole?
- Conservation of Angular and Linear Momentum - Physics Forums
If the platform were free to move, both linear and angular momentum would be conserved The conservation of angular momentum is specific to the reference point of the axle, as it affects the system's dynamics
- Spring momentum conservation problem • Physics Forums
For this problem, The reason why I am not sure whether it is a valid assumption whether momentum is conserved because during the collision if we consider the two masses to be the system, then there will be a uniform gravitational field acting on both masses, and a spring force that is acting
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