A wire 4.1 meters long is stretched horizontally between points 4.1 meters apart. The wire is 25.3 mm^2 in cross-section

[answerhappygod]

A wire 4.1 meters long is
stretched horizontally
between points 4.1 meters
apart. The wire is 25.3
mm^2 in cross-section with
a modulus of elasticity of
200,000 MPa. A load W
placed at the center of the
wire produces a sag Δ.
a. Find the tension (N) in
the wire if sag Δ is 30
mm.
b. What is the magnitude of
the load W (N) if sag Δ
is 3 mm?
c. If W is 60 N, what is
the sag (mm)?