Math Problem Statement

Find the x-component of the vector with magnitude |V| = 47.3 m and angle θ = 39.4°.

Solution

To find the x-component VxV_x of the given vector, we use the formula:

Vx=Vcos(θ)V_x = |V| \cdot \cos(\theta)

Where:

  • V=47.3m|V| = 47.3 \, \text{m} (magnitude of the vector)
  • θ=39.4\theta = 39.4^\circ (angle with the horizontal axis)

Now we calculate:

Vx=47.3cos(39.4)V_x = 47.3 \cdot \cos(39.4^\circ)

Using a calculator:

Vx=47.30.774V_x = 47.3 \cdot 0.774

Vx36.63mV_x \approx 36.63 \, \text{m}

So, the x-component Vx36.63mV_x \approx 36.63 \, \text{m}.

Would you like more details or explanations on any part of this?


Here are 5 related questions:

  1. How would you find the y-component of the vector?
  2. What happens to the x-component if the angle increases?
  3. How does the cosine function relate to vector components?
  4. What is the maximum possible value for the x-component?
  5. How do trigonometric functions help in resolving vector components?

Tip: Always make sure your calculator is set to degrees when calculating trigonometric functions involving angles in degrees!

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Vector Components
Cosine Function

Formulas

V_x = |V| * cos(θ)

Theorems

Cosine Rule for Vector Components

Suitable Grade Level

Grades 9-12