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v₂ = 4 m/s
α = 60°
Resultan Vektor :
= √(3² + 4² + 2(3)(4)(cos 60))
= √(9 + 16 + 12)
= √37 = 6,083 m/s
Vr = √ (V₁² + V² + 2 V₁ V₂ cos α)
Vr = √ (3² + 4² + 2 · 3 · 4 · cos 60°)
Vr = √ (9 + 16 + 12)
Vr = √37 ≈ 6,08 m/s ← jwb