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Total Energy Equation:
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The Total Energy Equation (E_total = KE + PE) represents the sum of kinetic energy and potential energy in a mechanical system. This fundamental principle in physics describes the conservation of mechanical energy in closed systems where only conservative forces act.
The calculator uses the total energy equation:
Where:
Explanation: The equation simply adds the kinetic energy (energy of motion) and potential energy (stored energy due to position) to determine the total mechanical energy of a system.
Details: Calculating total mechanical energy is crucial for understanding energy conservation in physical systems, analyzing mechanical work, and solving problems in classical mechanics and engineering applications.
Tips: Enter both kinetic energy and potential energy values in Joules. Both values must be non-negative numbers. The calculator will sum them to provide the total mechanical energy.
Q1: What units should I use for energy values?
A: The calculator uses Joules (J) as the standard unit for energy. Make sure both kinetic and potential energy values are in Joules.
Q2: Can this equation be used for all types of energy?
A: This specific equation calculates mechanical energy only. For complete energy analysis including thermal, chemical, or other forms of energy, additional equations are needed.
Q3: What if I have gravitational potential energy?
A: Gravitational potential energy (mgh) should be calculated separately and then entered as the PE value in this calculator.
Q4: Does this equation account for energy losses?
A: No, this is the ideal mechanical energy equation. Real systems may have energy losses due to friction, air resistance, or other non-conservative forces.
Q5: When is total mechanical energy conserved?
A: Total mechanical energy is conserved in closed systems where only conservative forces act and no energy is converted to other forms like heat or sound.