Sinus Method in Equilibrium
- Category: Shortcuts
- Written by fisikastudycenter
Shortcut to physics equilibrium, finding forces using sinus rule. Given angles between three forces that are in equilibrium condition as below figure. You are asked to determine T1 and T2 rope tensions.
See the shortcut and how it works.
The shortcut formulae
Follow the answer of above question to know how it works:
A block of 120 N with three involved ropes as this figure
Sketch the forces and the magnitude of angles involved. We'll find the tension of rope 1 and 2 using our shortcut above. The related angles are:
Using T1 and T3 = 120 N relationship then we get
Using T2 and T3 = 120 N relationship we get the result