Ek = 1/2 . m . v²
10.000 = 1/2 . m . (20)²
m = 20.000 : 400
m = 50 kg
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Ek = 1/2 . m . v²
10.000 = 1/2 . m . (20)²
m = 20.000 : 400
m = 50 kg
Semoga membantu!