Jawabanmu

2014-06-11T14:37:59+07:00
F=30 N
S = 2 m
W = F/S
     =30/2
     =15 Joule
Jawaban paling cerdas!
2014-06-11T14:38:36+07:00
W= F.s
w=(90-60).2
w=30.2
w = 60 j