Question

What is the strain in a wire cable of original length 50m whose length increases by 2.5cm when a load is lifted?

Answer 1

Explanation:

we know that longitudinal strain is equal to change in length / original length

so here change in length is 2.5cm and original length is 50m

so strain = ∆l/l = 2.5×10^-2/50 = 0.5×10^-3m