
#1
Nov1412, 09:38 AM

P: 1

1. The problem statement, all variables and given/known data
Had to work out the total energy in a mass spring system (Part d of question), which has been found to be: (v^2*m/4)[sin^2(nt) + sin^2(3nt)] The next part of the question (e) says to 'Discuss the meaning of your result to part (d) above' And I have no idea what to write! It is worth nearly 10% of the whole assignment! Any help would be much appreciated. Thanks 



#2
Nov1412, 11:10 AM

Thanks
P: 5,476

Your expression for total energy depends on time periodically. This cannot be true. It must either monotonically decay with time (if friction/resistance is present), or be constant.



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