Find Final Kinetic Energy of a particle subject to two forces

Thread starter maguss182
Start date Nov 12, 2021
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Energy Final Forces Kinetic Kinetic energy Particle

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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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Nov 12, 2021

maguss182

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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Nov 12, 2021

maguss182

nm i got it

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