R= the square root of x^2 + y^2

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SUMMARY

The discussion focuses on solving a physics problem from Giancoli's 5th Edition, specifically problem #17 in Chapter 3, which involves calculating the displacement vector components from a base camp to a mountain summit. The summit is 2085 m above the base camp and 4580 m horizontally at an angle of 32.4 degrees west of north. The x, y, and z components of the displacement vector are derived using trigonometric functions: x displacement is calculated as -Sin(32.4) * 4580, and z displacement as Cos(32.4) * 4580. The importance of vector direction in relation to the coordinate axes is emphasized.

PREREQUISITES
  • Understanding of basic trigonometry, specifically sine and cosine functions.
  • Familiarity with vector components in physics.
  • Knowledge of coordinate systems in three-dimensional space.
  • Ability to interpret displacement vectors in physics problems.
NEXT STEPS
  • Review the concept of vector decomposition in physics.
  • Study trigonometric identities and their applications in physics.
  • Learn about the use of displacement vectors in real-world scenarios.
  • Explore advanced problems involving three-dimensional motion and vector analysis.
USEFUL FOR

Students studying introductory physics, particularly those focusing on vector analysis and displacement calculations, as well as educators looking for examples of practical applications of trigonometry in physics.

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Homework Statement


This problem is #17 in Chapter 3 of Giancoli's 5th Edition Physics.

The summit of a mountain, 2085 m above base camp, is measured on a map to be 4580 m horizontally from the camp in a direction 32.4 degrees west of north, What are the x, y, and z components of the displacement vector from camp to summit? What is the length? Choose the x-axis east, y-axis north, and z axis up.

Homework Equations



R= the square root of x^2 + y^2

The Attempt at a Solution

 
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The angle refers to that between the z and x axis. The hypotenuse of the triangle made between these two is 4580. You then have the means of calculating the x and z displacements. Sin(32.4) X 4580 is the x displacement. Cos(32.4) X 4580 is the z displacement. Don't forget to make the x vector negative as you are traveling west, and positive is east. Intro physics is all about triangles and separating a magnitude (hypotenuse) into its vector components.
 

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