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T₁ = m g = 2 x 10 = 20 Newton
sudut antara T₂ dan T₃
a = 180 - 60 - 45 = 75°
sudut antara T₁ dan T₂
b = 180 + 45 = 225°
sudut antara T₁ dan T₃
c = 180 + 60 =240°
T₁/sin a = T₂/sin c = T₃/sin b
20/sin 75 ° = T₂ / sin 240 ° = T₃/sin 225°
20/0,966 = T₂ / (-0,866) = T₃ / (- 0,707)
T₂ = 17,93 N
T₃ = 14,64 N