Kinetic energy in classical and relativistic mechanics

Calculation of kinetic energy of a point object of mass m and velocity v in classical mechanics.

Kinetic energy of a point object in classical mechanics

Mass (kg)

Speed (m/sec)

Calculation precision

Digits after the decimal point: 4

Calculate

Energy (J)

 

Energy (kJ)

 

Energy (MJ)

 

Energy (GJ)

 

Energy (TJ)

 

Energy (PJ)

 

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Calculation of kinetic energy of a material point of mass m and velocity v in relativistic mechanics.

Here the velocity of the material point cannot exceed the speed of light (299792458 m/sec.)

Kinetic energy of a point object in relativistic mechanics

Mass (kg)

Speed (m/sec)

Calculation precision

Digits after the decimal point: 4

Calculate

Energy (J)

 

Energy (kJ)

 

Energy (MJ)

 

Energy (GJ)

 

Energy (TJ)

 

Energy (PJ)

 

 Link  Save  Widget

At low speeds, the results of both formulas coincide, but the closer to the speed of light, the greater the difference.