Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations SDETERS on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

FE practice exam Q56

Status
Not open for further replies.

GregLocock

Automotive
Apr 10, 2001
23,702
FE_Q_bu6ijo.jpg

FE_A_ojphfi.jpg


It seems to me the plug and chug answer is wrong, they should have used an energy balance 1/2*k*x^2=1/2*m*v^2 and got the answer A. They've assumed constant acceleration. I've checked it two ways, pity they didn't.


Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376
 
Replies continue below

Recommended for you

I like the energy approach. No mention made of orientation - sketch shows horizontal, but...
 
Quite a few NCEES problems are awful in my opinion, one immediately comes to mind on the practice PE exam. There are actually a few errors in the PE formula handbook as well on something as simple as beams. Just took the PE exam last month and the questions seemed better than the FE exam at least.

I like the energy approach on this one.

----------------------------------
Not making a decision is a decision in itself
 
What interests me is that they've actually worked out the correct approach - A is the right answer.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor