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12.13 Power

Element to measure the developed/applied power in changing state. In case of problems involving an element Center, it is assumed that events occur in a horizontal plane, so the gravitational potential energy is not taken into account. Nor does it take into account for the case of the explosion of a projectile. Since it is considered the state an instant before the explosion and the state an instant after it.

Equations:	1
Data:
System i:	A System or Object that represent the initial state.
System f:	A System or Object that represent the final state.
P:	Power.