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Okay Nath what is it about this problem that is confusing to you?

x=5.7 cos(45) i added the 2.6 to 3.1

Not quite.
For the x component 2.6 wouldn't be a part of it because none of it is in the x direction

you mean that 3.1 is not completely horiziontal

so what do i have to do

|dw:1329698312156:dw|

How far did the truck travel along the x axis?

What about the 3.1 km he traveled north east? Part of that displacement is along the x axis.

i know to find the x component it would be 3.1 cos(45)

That's correct :) and that plus the 4 km is how far he moved along the x axis

i mean i couldnt*

The 2.6 is completely vertical. The 4.0 is completely horizontal

yah

So add up the horizontal parts :)

okay thank u so much