Hiker Displacement: Find Distance East

  • Thread starter Thread starter ayerski
  • Start date Start date
  • Tags Tags
    Displacement
Click For Summary
SUMMARY

The discussion focuses on calculating the distance a backpacker walks east after initially hiking west. The backpacker travels 6.44 km at an average velocity of 2.68 m/s due west, then turns around and hikes east at 0.447 m/s. The solution involves using the velocity formula to equate the time taken for each segment of the journey. The equation derived is (6440/2.68) + (x/0.447) = (6440-x)/1.34, which can be solved for the distance x walked east.

PREREQUISITES
  • Understanding of basic kinematics, specifically velocity and distance calculations.
  • Familiarity with algebraic manipulation of equations.
  • Knowledge of the velocity formula: t = x/v.
  • Ability to convert units (e.g., kilometers to meters).
NEXT STEPS
  • Practice solving kinematic equations involving multiple segments of motion.
  • Learn about relative velocity concepts in physics.
  • Explore real-world applications of velocity calculations in hiking or travel scenarios.
  • Investigate advanced kinematic problems involving acceleration and deceleration.
USEFUL FOR

Students studying physics, particularly those focusing on kinematics, as well as educators looking for practical examples of motion calculations.

ayerski
Messages
4
Reaction score
0

Homework Statement


In reaching her destination, a backpacker walks with an average velocity of 1.34 m/s die west. This average velocity results because she hikes for 6.44 km with an average velocity of 2.68 m/s, due west, turns around, and hikes with an average velocity of .447 m/s due east. How far east did she walk?


Homework Equations


velocity formula number 2


The Attempt at a Solution


Trying to use multiple variables to solve but need a push in the right direction
 
Physics news on Phys.org
I'm not sure if this is correct, but the way I would do it is to compare the times taken for the first two parts of the journey with the time taken for the overall journey.

Using:

t=\frac{x}{v}

gives the following equation which can easily be solved for x to find the distance due east.

\frac{6440}{2.68} + \frac{x}{0.447} = \frac{6440-x}{1.34}

I hope that helps.

Ryan
 

Similar threads

Replies
3
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
3
Views
5K
Replies
3
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
3
Views
7K
  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 17 ·
Replies
17
Views
2K