" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
~Dinamika Gaya dengan Analisis Vektor~Diketahui
A. 1. A = 4 N
2. B = 6 N
3. C = F cos α = 5 cos 60 = 2,5 N
4. D = 4 cos 30 = 2 √3
B. F1 = 4 N
F2 = 2 N
F3 = 4 √3
Ditanya
1. R =__?
2. R dan φ =__?
Jawab
1. A - C + B maka
4 - 2,5 + 6 = 1,5 + 6 = 7,5 kanan
2. B - D + A = 10 - 2√3 = 6,5359 N kiri
B. Cari dahulu masing-masing sumbu X dan y maka
Σfx = -F1 cos α + F3 cos α
Σfx = -4 cos 30 + 4 √3 cos 60
Σfx = -2 √3 + 2 √3
Σfx = 0 N
Lalu, masing masing vektor di sumbu Y
Σfy = F1 sin α + F3 sin α - F2
Σfy = 4 sin 30 + 4 √3 sin 60 - 2
Σfy = 4. 1/2 + 4 √3. 1/2 √3 - 2
Σfy = 6 N
Jadi,
R = √(Σfx)² + (Σfy)²
R = √(0)² + (6)²
R = √36
R = 6
Arahnya yaitu
Tan θ = Σfy / Σfx
Tan θ = 6 / 0
θ = Archtan 6
θ = 80,537