Jawabanmu

2014-01-28T18:42:16+07:00
Energi mekanik = energi potensial + energi kinetik
220 j = m.g.h + energi kinetik
220 j = 2 kg . 10 m/s^2 . 8 m + ek
220 j = 160 joule + ek
220 j - 160 j = ek
60 joule = energi kinetik :)
makasih kak
sama sama :)
Ek max kak 60 j
yap thanks