Tbar = Tension of the Light Bar
Twire = Tension of the Wire
Newton First Law About Force :
Fx = 0
Tbar cos 45° - Twire cos 25° = 0
Twire = 0.78 Tbar ... (i)
Fy = 0
Tbar sin 45° - Twire sin 25° - 1 = 0 ... (ii)
Subtitute (i) into (ii) :
Tbar sin 45° - 0.78 Tbar sin 25° - 1 = 0
Tbar = 2.563 kN ... (iii)
Subtitute (iii) into (i) :
Twire = 0.78 (2.563)
Twire = 1.999 kN
