Jawabanmu

2014-02-11T22:45:53+07:00
Ep (energi potensial)=m.g.h
500=m.9,8.200
m=500/1960=0,25 kg
2014-02-11T22:50:44+07:00
500 = m*9,8*200
m= 1960 : 500
m = 3,92 kg