High school physics basic question about two dimensional motion (WITH PICTURE)

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SUMMARY

The discussion centers on solving a two-dimensional motion problem in high school physics, specifically calculating acceleration and direction. The user estimates acceleration at 0.4 m/s² but struggles with determining its direction. A key solution involves resolving velocity vectors into their x and y components, then calculating the difference to find the resulting velocity vector. This vector, when divided by time, provides both the magnitude and direction of average acceleration.

PREREQUISITES
  • Understanding of vector resolution in physics
  • Familiarity with two-dimensional motion concepts
  • Knowledge of acceleration and its calculation
  • Basic proficiency in trigonometric functions, specifically sine and cosine laws
NEXT STEPS
  • Study vector resolution techniques in physics
  • Learn how to calculate average acceleration in two dimensions
  • Explore the application of sine and cosine laws in motion problems
  • Practice solving two-dimensional motion problems with varying acceleration
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High school physics students, educators teaching kinematics, and anyone seeking to improve their understanding of two-dimensional motion and vector analysis.

lanvin
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Stuck on this problem.

I think acceleration is about 0.4m/s^2, but having the worst time trying to find direction. I think the sine or cosine law is supposed to be used?? Here's the question:

http://i299.photobucket.com/albums/mm286/lanvin12/physics.jpg
 
Last edited by a moderator:
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lanvin said:
Stuck on this problem.

I think acceleration is about 0.4m/s^2, but having the worst time trying to find direction. I think the sine or cosine law is supposed to be used?? Here's the question:

http://i299.photobucket.com/albums/mm286/lanvin12/physics.jpg

Welcome to PF.

I think you will need to treat your acceleration here as the difference of the vectors of velocity divided by time. This would mean that you need to resolve each of your velocities into its x,y components and then take the difference. This will give you a resulting velocity vector that when divided by the scalar of time should yield both the average acceleration (the magnitude) and of course the direction.
 
Last edited by a moderator:
Double thanks for the welcome and physics help! :D
 

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