Tentukan besar dan arah vektor gaya yang memiliki komponen-komponen berikut: a. Fx=5√3 N dan Fy=5N b.Fx=4N dan Fy-3N c.Fx=10N dan Fy=10√3 N d.Fx=15N dan Fy=15N.
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A. R = √ ( ∑Fx ) ² + (∑Fy) ² R= √ ( 5√3 ) ² + ( 5 ) ² R = √ 25.3 + 25 R = √ 100 R = 10 Arah Vektor = Tan α = ∑Fy / ∑Fx = 5 / 5√3 Tan α = 1√3/3 α = 30 ° b. R = √4² + 3² R = √25 R = 5 Arah Vektor = Tan α = 3 / 4 α = 37 ° c.R = √10² + (10√3)² R = √100 + 100.3 R = √100 + 300 R = √ 400 R = 20 Arah Vektor = Tan α = 10√3 / 10 Tan α = √3 α = 60° d.R = √ 15² + 15² R = √ 450 R = 15 √2 Arah Vektor = Tan α = 15 / 15 Tan α = 1 α = 45°
R= √ ( 5√3 ) ² + ( 5 ) ²
R = √ 25.3 + 25
R = √ 100
R = 10
Arah Vektor = Tan α = ∑Fy / ∑Fx
= 5 / 5√3
Tan α = 1√3/3
α = 30 °
b. R = √4² + 3²
R = √25
R = 5
Arah Vektor = Tan α = 3 / 4
α = 37 °
c.R = √10² + (10√3)²
R = √100 + 100.3
R = √100 + 300
R = √ 400
R = 20
Arah Vektor = Tan α = 10√3 / 10
Tan α = √3
α = 60°
d.R = √ 15² + 15²
R = √ 450
R = 15 √2
Arah Vektor = Tan α = 15 / 15
Tan α = 1
α = 45°