Join TSR now and get all your revision questions answeredSign up now

young modulus question help Watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    ym is 0.17x10^12 and area is 18mm and length of wire is increased by 0.095%
    how do u work out the stress?
    Offline

    2
    ReputationRep:
    Young modulus* strain
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by Unnamed User)
    Young modulus* strain
    yh i know but i dont have length or extension
    Offline

    3
    ReputationRep:
    (Original post by wayezkhan)
    yh i know but i dont have length or extension
    You do have the extension - it's 0.095%. Note that it says the wire's length is increased by 0.095% - that's the extension.
    Offline

    2
    ReputationRep:
    I believe that the 0.095% is the strain as it tells you that the wire's length increased by that amount. I think this means that 0.095%= (Extension/Original length)*100. So in order to find the strain, you will have to divide 0.095 by 100, and then multiply this by the young's modulus
    • Thread Starter
    Offline

    0
    ReputationRep:
    ohh that makes sense thanks
    (Original post by -Phoenix-)
    I believe that the 0.095% is the strain as it tells you that the wire's length increased by that amount. I think this means that 0.095%= (Extension/Original length)*100. So in order to find the strain, you will have to divide 0.095 by 100, and then multiply this by the young's modulus
 
 
 
Poll
Should gherkins be in burgers?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.