A truck travels 10.5 km in direction 37.9° north of west. What is the x-component of its displacement in meters. Consider the east direction fo be the positive x-direction and north to be the positive y-direction.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question
**Problem Statement:**

A truck travels 10.5 km in a direction 37.9° north of west. What is the x-component of its displacement in meters? Consider the east direction to be the positive x-direction and north to be the positive y-direction.

Round your answer to 0 decimal places.

**Solution Explanation:**

1. **Understanding Directions:**
    - The truck's travel direction is 37.9° north of west. 
    - This means we need to analyze the movement in a coordinate system where:
        - East is the positive x-direction.
        - North is the positive y-direction.
   
2. **Displacement Components:**
   - The total distance traveled by the truck is 10.5 km.
   - We need to find the x-component (west-east direction) of this displacement.

3. **Using Trigonometry:**
   - To determine the x-component, we use the cosine function.
   - x-component = Total Distance * cos(angle)
   - Here, the angle is referenced from west (+180°), so we'll use angle = 180° - 37.9° = 142.1°

4. **Calculating the X-Component:**
   - Convert 10.5 km to meters: \(10.5 \text{ km} \times 1000 \text{ m/km} = 10500 \text{ m}\)
   - x-component = \( 10500 \text{ m} \times \cos(142.1°) \)

5. **Computing the Value:**
   - Using a calculator: 
     \( \cos(142.1°) \approx -0.7547\)
   - x-component = \( 10500 \times -0.7547 \approx -7924.35 \text{ m} \)

6. **Rounding the Answer:**
   - Rounded answer to 0 decimal places: -7924 m

**Answer:**

The x-component of the truck's displacement is -7924 meters.
Transcribed Image Text:**Problem Statement:** A truck travels 10.5 km in a direction 37.9° north of west. What is the x-component of its displacement in meters? Consider the east direction to be the positive x-direction and north to be the positive y-direction. Round your answer to 0 decimal places. **Solution Explanation:** 1. **Understanding Directions:** - The truck's travel direction is 37.9° north of west. - This means we need to analyze the movement in a coordinate system where: - East is the positive x-direction. - North is the positive y-direction. 2. **Displacement Components:** - The total distance traveled by the truck is 10.5 km. - We need to find the x-component (west-east direction) of this displacement. 3. **Using Trigonometry:** - To determine the x-component, we use the cosine function. - x-component = Total Distance * cos(angle) - Here, the angle is referenced from west (+180°), so we'll use angle = 180° - 37.9° = 142.1° 4. **Calculating the X-Component:** - Convert 10.5 km to meters: \(10.5 \text{ km} \times 1000 \text{ m/km} = 10500 \text{ m}\) - x-component = \( 10500 \text{ m} \times \cos(142.1°) \) 5. **Computing the Value:** - Using a calculator: \( \cos(142.1°) \approx -0.7547\) - x-component = \( 10500 \times -0.7547 \approx -7924.35 \text{ m} \) 6. **Rounding the Answer:** - Rounded answer to 0 decimal places: -7924 m **Answer:** The x-component of the truck's displacement is -7924 meters.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Knowledge Booster
Vector basics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON