How much work is done? (Frictionless plane, xy coodrinates)

[TheSnacks]

Homework Statement

A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (1.5 m, 4.5 m) while a constant force acts on it. The force has magnitude 7.8 N and is directed at a counterclockwise angle of 105° from the positive direction of the x axis. How much work is done by the force on the coin during the displacement?

Homework Equations

I used the equation Fxdx + Fydy = W

The Attempt at a Solution

I used cosine and sine to find the x and y components of the Force. And the x and y coordinates for the displacement were already given. I figured everything would work when I plug those in, but I had no luck. Any idea what I did wrong?

 

[Donaldos]

What did you do exactly?

 

[zack_21]

If you give what you did exactly, and what answers you got it would be easier to help you. You have the right idea, just aren't executing it properly.

 

[TheSnacks]

Thanks for trying to help - sorry for the lack of information. But I figured it out.