Newton’s second law
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Open a calculatorKinetic and potential
KE = ½ m v². PE = m g h with g = 9.81 m/s². Speed is in m/s, height in metres. Rotational energy and a changing g are not here.
kg
m/s
m
Kinetic
3,500 J
Potential
1,373.4 J
Kinetic: 3,500 J
70 kg at 10 m/s is 3 500 J. Two metres up is about 1 373 J. The free-fall page is the motion, not the joules.
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An educational estimate. Not medical, tax or credit advice.