A change in mass and/or linear velocity in a system can affect both the momentum and the kinetic energy. The relative change in momentum and energy can be determined from the relative changes in mass and speed.


momentum =

= (mass) * (velocity)


relative change in momentum =

= (relative change in momentum) * (relative change in velocity)


kinetic energy =

= 0.5 * (mass) * ((velocity)^2)


relative change in kinetic energy =

= (relative change in mass) * ((relative change in velocity)^2)



• relative change = (new value) / (previous value)


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