Math Problem Statement

Their magnitudes are:

A = 25.0 m , B = 33.4 m , C = 23.6 m , D = 25.4 m

angles α = 56 ∘ β = 23 ∘ γ = 27 ∘ δ = 19 ∘ 1. Vector A⃗ : Calculate its x- and y- components. (Pay attention to the angle used in calculation, and the sign of each component.) 2. Vector B⃗ : Calculate its x- and y- components. (Pay attention to the angle used in calculation, and the sign of each component.) 3. Vector C⃗ : Calculate its x- and y- components. (Pay attention to the angle used in calculation, and the sign of each component.) 4. Vector D⃗ : Calculate its x- and y- components. (Pay attention to the angle used in calculation, and the sign of each component.). just list the answers

Solution

To calculate the x- and y-components of each vector, we will use the following formulas:

Ax=Acos(α),Ay=Asin(α)A_x = A \cdot \cos(\alpha), \quad A_y = A \cdot \sin(\alpha) Bx=Bcos(β),By=Bsin(β)B_x = B \cdot \cos(\beta), \quad B_y = B \cdot \sin(\beta) Cx=Ccos(γ),Cy=Csin(γ)C_x = C \cdot \cos(\gamma), \quad C_y = C \cdot \sin(\gamma) Dx=Dcos(δ),Dy=Dsin(δ)D_x = D \cdot \cos(\delta), \quad D_y = D \cdot \sin(\delta)

Given values:

  • A=25.0m,α=56A = 25.0 \, \text{m}, \, \alpha = 56^\circ
  • B=33.4m,β=23B = 33.4 \, \text{m}, \, \beta = 23^\circ
  • C=23.6m,γ=27C = 23.6 \, \text{m}, \, \gamma = 27^\circ
  • D=25.4m,δ=19D = 25.4 \, \text{m}, \, \delta = 19^\circ

1. Vector A\mathbf{A}:

Ax=25.0cos(56)=25.00.559=13.975mA_x = 25.0 \cdot \cos(56^\circ) = 25.0 \cdot 0.559 = 13.975 \, \text{m} Ay=25.0sin(56)=25.00.829=20.725mA_y = 25.0 \cdot \sin(56^\circ) = 25.0 \cdot 0.829 = 20.725 \, \text{m}

2. Vector B\mathbf{B}:

Bx=33.4cos(23)=33.40.923=30.8mB_x = 33.4 \cdot \cos(23^\circ) = 33.4 \cdot 0.923 = 30.8 \, \text{m} By=33.4sin(23)=33.40.391=13.1mB_y = 33.4 \cdot \sin(23^\circ) = 33.4 \cdot 0.391 = 13.1 \, \text{m}

3. Vector C\mathbf{C}:

Cx=23.6cos(27)=23.60.891=21.0mC_x = 23.6 \cdot \cos(27^\circ) = 23.6 \cdot 0.891 = 21.0 \, \text{m} Cy=23.6sin(27)=23.60.454=10.7mC_y = 23.6 \cdot \sin(27^\circ) = 23.6 \cdot 0.454 = 10.7 \, \text{m}

4. Vector D\mathbf{D}:

Dx=25.4cos(19)=25.40.945=24.0mD_x = 25.4 \cdot \cos(19^\circ) = 25.4 \cdot 0.945 = 24.0 \, \text{m} Dy=25.4sin(19)=25.40.325=8.3mD_y = 25.4 \cdot \sin(19^\circ) = 25.4 \cdot 0.325 = 8.3 \, \text{m}


Final Results:

  1. Vector A:

    • Ax=13.98mA_x = 13.98 \, \text{m}
    • Ay=20.73mA_y = 20.73 \, \text{m}
  2. Vector B:

    • Bx=30.80mB_x = 30.80 \, \text{m}
    • By=13.10mB_y = 13.10 \, \text{m}
  3. Vector C:

    • Cx=21.00mC_x = 21.00 \, \text{m}
    • Cy=10.70mC_y = 10.70 \, \text{m}
  4. Vector D:

    • Dx=24.00mD_x = 24.00 \, \text{m}
    • Dy=8.30mD_y = 8.30 \, \text{m}

Let me know if you'd like further clarifications or detailed calculations for any step!

Related Questions:

  1. How do these component calculations relate to vector addition?
  2. What would happen if the angles were adjusted by 90°?
  3. How can you find the resultant vector from the components?
  4. What is the significance of the signs in the x- and y-components?
  5. How does the angle affect the magnitude of each vector component?

Tip: Always make sure to check the angle's reference direction when calculating vector components.

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Math Problem Analysis

Mathematical Concepts

Vector Analysis
Trigonometry
Coordinate Geometry

Formulas

A_x = A * cos(α), A_y = A * sin(α)
B_x = B * cos(β), B_y = B * sin(β)
C_x = C * cos(γ), C_y = C * sin(γ)
D_x = D * cos(δ), D_y = D * sin(δ)

Theorems

Vector decomposition
Trigonometric identities

Suitable Grade Level

Grades 10-12