Jawabanmu

2014-05-27T20:43:52+07:00
Dkt =
M = 40 kg
v = 10 m/s

dit = EK
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Jawab
Ek = 1/2 . m . v²
Ek = 1/2 . 40 . 100
EK = 2000 
         
2014-05-27T20:45:19+07:00