Jawabanmu

2014-09-07T21:10:51+07:00
Wari = 1/3Wayah
Wayah + 1/3Wayah = 980N
4/3Wayah = 980
Wayah = 980 × (3/4) = 735N
Wari = (1/3)Wayah
Wari = (1/3) × 735N
Wari = 245N
Maka
Massa Ari = 245N ÷ 9,8 = 29,0816kg
Massa Ayah = 735N ÷ 9,8 = 75kg