Dua buah vekror masing-masing besarnya 8 satuan dan 6 satuan. jika sudut yang diapit antara dua vektor tersebut sebesar 60derajat, maka resultan kedua vektor?
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F1 = 8 satuan
F2 = 6 satuan
α = 60
dit : R ?
dijawab :
R = √(8²+6² + 2 x 8 x 6 x cosα)
= √(64 + 36 + 2x8x6x1/2)
= √(100 + 48
= √148 N