MathLiveConservation of mechanical energy
In a system where only conservative forces act, the sum of kinetic and potential energy stays the same at every point of the motion. It is used to solve motion problems such as falling bodies, pendulums and roller coasters without tracking forces directly.
E_{\mathrm{mech}} = K + U = \text{constant}What the symbols mean
| total mechanical energy (J) | |
| kinetic energy (J) | |
| potential energy (J) |
About this formula
- FieldPhysics
- TopicClassical mechanics
- LevelHigh school
- Also calledconservation of energy, mechanical energy conservation, kinetic plus potential energy constant, energy conservation law mechanics, total mechanical energy, KE + PE constant
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