Module 2—Motion in Two Dimensions

Explore

 

This lesson began with questions posed in Get Focused. Lesson 2 Lab: Numerical Vector Addition includes a simulation to numerically calculate the answers to those questions. You will be required in the lab to use vector concepts introduced in Lesson 1 of Module 1. Read your textbook and answer the following Self-Check question to review those concepts.

 

Read

 

Review “Motion in Two Dimensions” on pages 76 to 78 of your textbook. The Cartesian method is capitalized because it is named after a person, René Descartes, an early French philosopher and mathematician.

 

Self-Check

 

SC 1. Use the diagram below to answer the following questions:

  1. Which vector is the x component?

  2. Which vector is the y component?

  3. What is the direction of the green vector in the Cartesian method?

  4. If the x direction was east and the y direction was north, what is the direction of the green vector measured from west in the navigator method?

Check your work.
Self-Check Answers

 

SC 1.

  1. blue
  2. red
  3. 128º
  4. 52º N of W