KE

Kinetic Energy Calculator

The energy of a moving mass, or the speed or mass that gives a known energy.

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Result…

Solve for
kg

 

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How it's calculated

KE = ½ × m × v²
m = 2 × KE ÷ v²
v = √(2 × KE ÷ m)

Kinetic energy grows with the square of speed, which is why braking distance roughly quadruples when speed doubles. The result is in joules; 1 kJ is 1000 J. This is the classical formula and is accurate for anything far slower than light.

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