Question

A polymer bar’s dimensions are 1 in. 3 2 in. 3 15 in. The polymer has a modulus of elasticity of 600,000 psi. What force is required to stretch the bar elastically from 15 in. to 15.25 in.?

Answer 1

Answer: Force= 297,000 N

Step-by-step explanation:

Strain, stress and Hooke's Law will be used to solve this problem.

(The attachment below shows the calculations)