The unloaded length of the rope is s₀ and the distance between the attachment points on the same level is L. The rope is loaded from the center with a force G. The Young's modulus of the rope is Eand the cross-sectional area is A. The rope's own weight is not taken into account.

Draw a free-body diagram. Derive a connection between the suspension of the rope and the known quantities: ?= ?(G, L, s₀, E, A).

V L/2 L/2 So H EA GSo D S S = (1+ 8)So sin(0) ~ S W 2