Determine the magnitude of the resultant and its direction | Hibbeler Statics | Engineers Academy

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Engineering Statics by Hibbeler 14th Edition
Chapter 2: Force Vectors

2–42. Express F1, F2, and F3 as Cartesian vectors.
2–43. Determine the magnitude of the resultant force and its direction, measured counterclockwise from the positive x axis.

Determine the magnitude of the resultant and its direction. | Hibbeler Statics | Engineers Academy
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[ChristopherVasquez-mh]

I may have misunderstood, but I'm a bit confused because it seems that sine was used for Fx and cosine for Fy. Could you kindly clarify if there's a specific reason for this?

[sabahayder]

Thank you very much, you are very helpful

[قصيمحمودعلي]

Hello, is it possible to solve this example

*2-8. If the resultant force is required to act along the positive u axis and have a magnitude of 5 kN. determine the required magnitude of Fg and its direction 0.

[ataki]

In f1 Why you using cosin with x, you must using sin with x becoz the angel is near from y axis