Jawaban:
cos α = 1
Penjelasan:
F1 = 3F2
R = 2( F1-F2)
√( F1²+F2² + 2F1F2.cos α ) = 2( F1-F2)
√( 9F2² +F2² + 2.3F2.F2.cos α ) = 2(3F2-F2)
√( 10F2²+6F2².cos α ) = 4F2
10F2²+6F2².cos α = 16 F2²
10 +6 .cos α = 16
6.cos α = 6
α = 0° ⇒ F1 dan F2 berimpit
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Jawaban:
cos α = 1
Penjelasan:
F1 = 3F2
R = 2( F1-F2)
√( F1²+F2² + 2F1F2.cos α ) = 2( F1-F2)
√( 9F2² +F2² + 2.3F2.F2.cos α ) = 2(3F2-F2)
√( 10F2²+6F2².cos α ) = 4F2
10F2²+6F2².cos α = 16 F2²
10 +6 .cos α = 16
6.cos α = 6
cos α = 1
α = 0° ⇒ F1 dan F2 berimpit