Math Problem Statement
Solution
This is a bearings and distances problem. We need to find the bearing of point from point .
Given:
- A man starts at point .
- Walks 2 km on a bearing of (from the north).
- Then walks 3 km on a bearing of to reach point .
To solve:
We will treat the journey as a vector problem and use trigonometry (sine and cosine rules) to determine the bearing of from .
-
Step 1: Plot the vectors.
- Vector represents the first leg of the journey, 2 km at a bearing of .
- Vector represents the second leg, 3 km at a bearing of .
-
Step 2: Break the vectors into components.
- For : Bearing is , so:
- For : Bearing is , so: These components will help us calculate the final position of relative to .
-
Step 3: Combine the components.
- The total horizontal (x) and vertical (y) components will give us the overall displacement from to .
-
Step 4: Calculate the bearing. The bearing from to can be found using: Adjust the angle to ensure it's measured from north in a clockwise direction.
I'll calculate these values next.The bearing of point from point is approximately .
Would you like further details or clarification on any part of this process?
Here are 5 related questions for further practice:
- How do you convert bearings from degrees to radians?
- What is the difference between true bearing and compass bearing?
- How would the bearing change if the man walked south instead of north first?
- How can you use the cosine rule to solve for bearings in triangle problems?
- How do you apply vector addition in solving navigation problems like this?
Tip: When calculating bearings, always measure clockwise from north, and ensure the final bearing is adjusted to lie between 0° and 360°.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Trigonometry
Bearings
Vector Addition
Formulas
x = d * sin(θ)
y = d * cos(θ)
θ = tan^(-1)(x / y)
Theorems
Sine Rule
Cosine Rule
Suitable Grade Level
Grades 10-12
Related Recommendation
Find the True Bearing of A from C after Displacements
Calculate Distance Using Bearings and the Law of Cosines
Trigonometry Problem: Calculating Distance from A to C Using Bearings and Law of Cosines
Calculate the Bearing of Point C from Point B using Bearings and Angles
Calculate Distance Using Bearings and Trigonometry - Step-by-Step Solution