Let's look at how to find unknown forces when it comes to objects in equilibrium. We look at the summation of forces in the x axis and y axis, specifically 2D forces (coplanar forces). 4 examples with step by step solutions, with a broad range of coverage including springs, multiple points of consideration and geometry.

🔹Break forces into components:    • Vector Addition of Coplanar Forces (x...  

Intro(00:00)
Determine the tension developed in wires CA and CB required for equilibrium (01:53)
Each cord can sustain a maximum tension of 500 N. (03:44)
If the spring DB has an unstretched length of 2 m (06:05)
Cable ABC has a length of 5 m. Determine the position x (07:31)

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Book used: R. C. Hibbeler and K. B. Yap, Engineering Mechanics Statics.
Hoboken: Pearson, 2017.