Jawabanmu

2014-06-12T08:17:23+07:00
2014-06-12T08:37:48+07:00
F1 / A1 = F2 / A2
400N / 0.0006 = F2 / 0.003
F2 = 400 x 0.003 / 0.0006
F2 = 2000 N