Assuming that we wanted to consider building the elevator ou

Assuming that we wanted to consider building the elevator out of unreinforced Portland cement which has a density of 2.01 g/cm3, a Young\'s modulus of 3 GPa, and yield stress of 58 MPa, what is the maximum height, h, which could be sustained?

Express your answer in km.

Undeformed Deformed u(h) Ps(x)--pgA Earth

Solution

Using formula,

P(h+L) = sigma square × A ×L ÷(2×E)

Where,

P= applied load

h = falling at height

L= change in length

Sigma= yield stress

A = area

L = original length

E= youngs modulus

Use this formula easily find the value of \"h\"