Jawabanmu

2014-08-17T09:23:46+07:00
Ftotal=3+10+2=15 N
m = F/a =15/2 =7.5 kg
2014-08-17T09:25:13+07:00
A = 2N/kg
m = ?
 ΔF = 3N + 10N + 2N = 15N
maka: m = F/a = 15/2 = 7,5kg

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