- #1
Edothegray
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Homework Statement
Given the scheme
https://www.dropbox.com/s/nm943gleo2nc8ft/Screenshot%202016-08-28%2013.47.33.png?dl=0
Springs' constant k=40 N\m
mass of bulk m=6kg
The wooden bulk is released at rest when all the springs are not stretched
Question: What is the elastic total maximal Energy of the system?
2. Homework Equations
E=0.5*K*(deltaX)^2
A=0.375m
Maximal kinetic energy 11.25Joul
The Attempt at a Solution
If I substitute all the givens in the equation given in section 2 above, I get Etot=4*0.5*40*0.375^2=45/4=11.25
Let me know if it's correct because what I saw in the book answers is 45J, which doesn't match my calculations. Maybe I'm missing something
Thanks for your attention