Mechanical deformation question

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 1K views
Alex Katko
Messages
15
Reaction score
0
upload_2016-10-25_21-10-27.png

I know that i should use the equation:
δ = NL/AE
In this case, i looked up E and found it to be 15 KSI.

Im trying to find the change in distance between points B and C. Therefore, N should be 2 kips (2000 pounds), L is 150 inches, and A in 0.8 inches squared. Plugging this into the equation gives me 25 inches. However, the correct answer is 0.025 inches.

I think I'm close, but somewhere I'm going wrong. Any help would be great.
 
Physics news on Phys.org
I think you slipped a few zero's when you looked up the value for E. Check it again. In the future, please post in the homework section . Thanks.
 
  • Like
Likes   Reactions: Alex Katko