Expressed in terms of the constants

[julz127]

Homework Statement

"Expressed in terms of the constants in this model, how high is the lowest point of the cable?
(Assume the correct dimension to be in metres)"

Homework Equations

Equation for the shape of a hanging cable.
[PLAIN]http://img59.imageshack.us/img59/8672/eqn6142.png

edit: P, g & H are constants.

The Attempt at a Solution

The lowest point is of course at x = 0.
I'm confused by "Expressed in terms of the constants in this model"

 

[praharmitra]

the question asks not where the cable is its lowest, but what is height of its lowest point.

 

[julz127]

Yeah so y(0) is the height of the lowest point?
In the OP is said the lowest point is at x = 0, I'm Having trouble understanding the wording of the question.

I think the answer is Height = H/Pg, since cosh(0) = 1. But I'm not sure if that's "In terms of the constants"

 

[praharmitra]

ya, that is right