- #1
GrandLuxor
- 3
- 0
1. The Problem...
A brass wire is to withstand a tensile force of 350 N without breaking. What minimum diameter must the wire have?
Given Quantity: Young's modulus for brass = 9.0 * 10^10
2. What I Thought I Needed to Solve It...
Young's modulus = Tensile strength/Tensile strain
Stress = Force/cross section area
Strain = distance stretched/initial length
3. I only know 2 of the 5 variables; how much force will be applied and Young's modulus. I'm not sure where to go without knowing the stretch or length of the wire.
A brass wire is to withstand a tensile force of 350 N without breaking. What minimum diameter must the wire have?
Given Quantity: Young's modulus for brass = 9.0 * 10^10
2. What I Thought I Needed to Solve It...
Young's modulus = Tensile strength/Tensile strain
Stress = Force/cross section area
Strain = distance stretched/initial length
3. I only know 2 of the 5 variables; how much force will be applied and Young's modulus. I'm not sure where to go without knowing the stretch or length of the wire.