What is the question, are we supposed to find the value of "u"? If so, than u is equal to 6 6/7.
Answer:
The correct option is;
10 m
Step-by-step explanation:
The parameters given are;
Height of the first pole = 20 m
Height of the second pole = 14 m
The angle the wire connected to their top makes with the horizontal = 30°
The vertical height subtended by the inclined wire, h = The difference in height between the two poles = 20 - 14 = 6 m.
Let the horizontal distance between the two poles = D
Therefore;
The horizontal length of the wire = D
From trigonometric ratios, we have;

Which gives;

The correct option is 10 m.
BANK A:
5,000*0.03*5=750
BANK B:
5,000*0.025*6=750
They are the same