Often a vector is specified by a magnitude and a direction; for example, a rope with tension T exerts a force of magnitude T= 20 N in a direction 0 = 35° north of east. This is a good way to think of vectors; however, to calculate results with vectors, it is best to select a coordinate system and manipulate the components of the vectors in that coordinate system.

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)...
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### Understanding Vector Components

Often a vector is specified by a magnitude and a direction. For example, a rope with tension **T** exerts a force of magnitude \( T = 20 \, \text{N} \) in a direction \( \theta = 35^\circ \) north of east. This is a good way to think of vectors; however, to calculate results with vectors, it is best to select a coordinate system and manipulate the components of the vectors in that coordinate system.

#### Diagram Overview

The diagram shows three vectors, \(\vec{A}\), \(\vec{B}\), and \(\vec{C}\), originating from the origin of the coordinate system.

- **\(\vec{A}\)**:
  - Length: \( a \)
  - Angle with the x-axis: \( \alpha \)

- **\(\vec{B}\)**:
  - Length: \( b \)
  - Angle with the x-axis: \( \beta \)

- **\(\vec{C}\)**:
  - Length: \( c \)
  - Angle with the x-axis: \( \phi \)

The positive x and y axes are marked on the coordinate system.

#### Problem Statements

1. **Find the components of the vector \(\vec{A}\)** with length \( a = 1.00 \) and angle \(\alpha = 20.0^\circ\) with respect to the x-axis.
   
   Enter numerically, separated by a comma, the x component followed by the y component.

2. **Find the components of the vector \(\vec{B}\)** with length \( b = 1.00 \) and angle \(\beta = 20.0^\circ\) with respect to the x-axis.
   
   Enter numerically, separated by a comma, the x component followed by the y component.

3. **Find the components of the vector \(\vec{C}\)** with length \( c = 1.00 \) and angle \(\phi = 35.0^\circ\).
   
   Enter numerically, separated by a comma, the x component followed by the y component.

These exercises are designed to help you understand how to decompose vectors into their components along given coordinate axes, a fundamental skill in solving problems involving vectors.
Transcribed Image Text:### Understanding Vector Components Often a vector is specified by a magnitude and a direction. For example, a rope with tension **T** exerts a force of magnitude \( T = 20 \, \text{N} \) in a direction \( \theta = 35^\circ \) north of east. This is a good way to think of vectors; however, to calculate results with vectors, it is best to select a coordinate system and manipulate the components of the vectors in that coordinate system. #### Diagram Overview The diagram shows three vectors, \(\vec{A}\), \(\vec{B}\), and \(\vec{C}\), originating from the origin of the coordinate system. - **\(\vec{A}\)**: - Length: \( a \) - Angle with the x-axis: \( \alpha \) - **\(\vec{B}\)**: - Length: \( b \) - Angle with the x-axis: \( \beta \) - **\(\vec{C}\)**: - Length: \( c \) - Angle with the x-axis: \( \phi \) The positive x and y axes are marked on the coordinate system. #### Problem Statements 1. **Find the components of the vector \(\vec{A}\)** with length \( a = 1.00 \) and angle \(\alpha = 20.0^\circ\) with respect to the x-axis. Enter numerically, separated by a comma, the x component followed by the y component. 2. **Find the components of the vector \(\vec{B}\)** with length \( b = 1.00 \) and angle \(\beta = 20.0^\circ\) with respect to the x-axis. Enter numerically, separated by a comma, the x component followed by the y component. 3. **Find the components of the vector \(\vec{C}\)** with length \( c = 1.00 \) and angle \(\phi = 35.0^\circ\). Enter numerically, separated by a comma, the x component followed by the y component. These exercises are designed to help you understand how to decompose vectors into their components along given coordinate axes, a fundamental skill in solving problems involving vectors.
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