Solving Vectors Problem: 4 People Pulling on Rope at Square Corners

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myoplex11
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Homework Statement


4 people stand at the corners of a square. Fred stands at point (0,0)
Ted at (1,0) Ed at (1,1) and ned at (0,1). they each pull on a rope connected to the center of the square
(0.5,0.5). Fred exerts 11N, Ted exerts 11N, Ed 17N and Ned 15N. what is the net force exerted on the center point and what is the angle from the positive x-axis


Homework Equations





The Attempt at a Solution


Fx = 17cos60+11cos60-11cos60-15cos60
Fy = 17sin60-11sin60-11sin60+15sin60
fnet = (fx^2+fy^2)^.5
i am not getting the right anwser where am i going wrong
 
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Hi myoplex11,

myoplex11 said:

Homework Statement


4 people stand at the corners of a square. Fred stands at point (0,0)
Ted at (1,0) Ed at (1,1) and ned at (0,1). they each pull on a rope connected to the center of the square
(0.5,0.5). Fred exerts 11N, Ted exerts 11N, Ed 17N and Ned 15N. what is the net force exerted on the center point and what is the angle from the positive x-axis


Homework Equations





The Attempt at a Solution


Fx = 17cos60+11cos60-11cos60-15cos60
Fy = 17sin60-11sin60-11sin60+15sin60
fnet = (fx^2+fy^2)^.5
i am not getting the right anwser where am i going wrong

I don't believe the angles involved here are 60 degrees. What would they be?