Jawabanmu

2014-08-25T19:36:06+07:00
W1 = 0,5 kg x 9,8m/s² = 4,9 N
W2 = 4 kg x 9,8m/s² = 39,2 N
W3 = 8 kg x 9,8m/s² = 78,4 N



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