Question

Find the length between poles? ​

Answer 1

Answer:

Equation of catenary is y= a cosh (x/a).

In our problem, a= 10 m. So we calculate x for y = 50 m.

Then, y/a= cosh (x/a) OR

50/10=5= cosh( x/10).

Now, from the tables of hyperbolic cosine function,

x/10= 2.3 OR

x=23.

Hence, distance between two poles is 46m.