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Find the x- and y-components of the vector d⃗ = (3.0 km , 24 ∘ left of + y-axis).

Express your answer in kilometers. Enter the x and y components of the vector separated by a comma.

User Aenaon
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1 Answer

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Final answer:

The x- and y-components of the vector (3.0 km, 24° left of +y-axis) are approximately -2.74 km and 1.22 km, respectively, calculated using trigonometric functions with the given magnitude and angle.

Step-by-step explanation:

To find the x- and y-components of the vector δ⟷ = (3.0 km, 24° left of +y-axis), we can use trigonometric functions. Since the angle is given as left of the +y-axis, this means the vector is primarily pointing upwards, with a slight shift to the left, which in Cartesian coordinates corresponds to a positive y-component and a negative x-component.

Let's denote the magnitude of the vector as D and the angle with respect to the +y-axis as θ. The x-component Dx can be found using the cosine function, while the y-component Dy can be found using the sine function, with both considering the given angle.

Dx = -D × cos(θ)
Dy = D × sin(θ)

Here, D is 3.0 km and θ is 24°.

Dx = -3.0 km × cos(24°)
Dy = 3.0 km × sin(24°)

Calculating the numerical values:

Dx ≈ -3.0 km × 0.9135 ≈ -2.74 km
Dy ≈ 3.0 km × 0.4067 ≈ 1.22 km

Thus, the x-component is approximately -2.74 km, and the y-component is approximately 1.22 km. The answer should be given as -2.74 km, 1.22 km.

User SooDesuNe
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