Deriving potential energy

  • Thread starter 71GA
  • Start date
  • #1
208
0
Hello, i am trying to derive flexible energy, but i get a negative sign in front of a Work (A). Where did i miss?
F is force of a spring. I don't know if i used Hooke's law correctly...

screenshot.png


Thank you for looking.
 
Last edited:

Answers and Replies

  • #3
208
0
Nomrally, potential energy is the negative of the work performed by some force in moving some object from one point to another.

http://en.wikipedia.org/wiki/Potential_energy


I am sorry i miss write... it is about flexible energy :)
 
  • #4
nasu
Gold Member
3,776
433
I think you mean "elastic energy". And the elastic energy is a form of potential energy.
What you calculate is the work done by the elastic force between the points 1 and 2. This is equal to -(U2-U1).
 

Related Threads on Deriving potential energy

Top