Find Final Kinetic Energy of a particle subject to two forces

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SUMMARY

The discussion focuses on calculating the final kinetic energy of a particle influenced by two forces. The user initially struggled with the equations needed to transition from the coordinates (0,0,0) to (1,0,0) and then from (1,0,0) to (1,1,0). The confusion centered around determining the work done by non-conservative forces (Wnc), but the user ultimately resolved their issue independently.

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  • Understanding of Newton's laws of motion
  • Familiarity with kinetic energy equations
  • Knowledge of work-energy principles
  • Basic vector mathematics for coordinate transformations
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  • Learn how to calculate work done by non-conservative forces
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maguss182
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Homework Statement
The force of gravity (-mg) in the k direction and the non conservative force (-b)i-(b)j-(b)k act on a particle that starts off at speed V(int) from the origin to a point (1,1,0), while moving first in the x direction than in the y direction. Find the final kinetic energy of the particle.
Relevant Equations
DeltaT-DeltaU=Wnc T=1/2mv^2 U=-mg,
I'm having trouble putting the rest of the equations together, I believe I need the different from (0,0,0) to (1,0,0) and then (1,0,0) to (1,1,0) right? Then solve for x direction and y direction. What would I use for Wnc tho? I'm very confused.
 
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nm i got it
 

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