Jawabanmu

2014-03-26T17:56:46+07:00
Jawaban paling cerdas!
2014-03-26T17:57:35+07:00
Dik : M = 150 kg
       V = 20 m/s
Dit = Ek ... /
Peny = Ek = 1/2 . m . v²
         Ek = 1/2 . 150. 400
           Ek = 30.000 J
1 5 1