Jawabanmu

2013-12-06T21:36:23+07:00
2013-12-06T21:37:12+07:00
SigmaF=m.a
N-W=m.a
N= m.a + W
N= 50. 2,5 + (m . g)
N= 125 + 500
N= 625 newton

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