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Forces F1 and F2 act at point O in the directions shown to produce the horizontal resultant
R = F1 + F2 that has magnitude R =126N .

1. Determine the magnitude of force F1 .
a. 78.0N

b. 52.5N
c. 116N

d. 104N

2. Determine the magnitude of force F2 .

a. 78.0N

b. 26.8N
c. 50.0N

d. 39.0N

F,
13
5.
= 22.6°
12
12
tan
> R=126N
%3D
3.
4
-1
tan
= 53.1°
%3D
5.
F,
LO

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