Question

A rod has a radius of 100 mm and a length of 10 cm. A 100 N force compresses along its length . Calculate the longitudinal stress developed in the rod.

Answer 1

Given r = 100 mm `=100xx10^(-3)m`
`l=10cm=10xx10^(-2)m`
F = 100 N
`"Stress"=("Force")/("area")=(100N)/(pi(100xx10^(-3))^(2)m^(2))=3184.71N//m^(2)`