Jawabanmu

2014-04-23T15:52:13+07:00
Rumus Usaha = f x s =(70 + 40) x 4 =120 x 4 =480 N
Jawaban paling cerdas!
2014-04-23T16:46:42+07:00
W = f x s
W = (50+70) N x 4 m
W = 120 N x 4 m
W = 480 Nm
W = 480 Joule

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