63 194
Assignments Done
99,3%
Successfully Done
In July 2018

Answer to Question #8165 in Mechanics | Relativity for Reena

Question #8165
in an experiment to find the young modulus , the strain should not be more than 1 in 1000 , explain this statement
Expert's answer
Young's modulus is a ratio for metal - metal wire, metal rod, metal beam etc.
Y = stress/strain {in the ELASTIC region of materials ie metals}

Strain = (Lf - Lo)/Lo,

where Lf is final length and Lo is initial length.
If
strain < 0.001
then
(Lf - Lo)/Lo < 0.001

and from that

Lf - Lo < 0.001(Lo).

Keeping the "change in length" below 0.1% is necessary to prevent the "elastic limit"
of the metal from being exceeded. IF a metal's elastic limit is exceeded "Young's modulus" no longer = stress/strain so any experiment to find its value that went beyond the elastic range would be void.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions