- #1
SFG
- 3
- 0
Homework Statement
Please if anyone could help me with this question .
Two wires AC and BC are attached to the top of pole CD . The force exerted by the pole at C is vertical and the 2.5 kN force applied at C is horizontal and makes an angle α with the direction of the x-axis .
Find the angle α for which the tension in AC is a maximum and the corresponding tension in each cable .
as per pdf diagram
Homework Equations
Cos ^2 ɸx + Cos ^2 ɸy + Cos ^2 ɸz = 1
F = √Fx^2 + Fy^2 + Fz^2
Cos ɸz = Fz/F
The Attempt at a Solution
Formulate a quadratic then differentiate to get a maxima .Sorry I cannot find the start point for this solution . Please help