Find Final Kinetic Energy of a particle subject to two forces

[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.

 

[maguss182]

nm i got it