- #1
GregA
- 210
- 0
EPE...Verify this concept?
I think I am on the verge of solving a question that has been bugging me for an hour or so but before I give myself a pat on the back can someone just have a look at a certain facet of the problem (that I will explain) and tell me if what I think is happening *is* actually happening...(ie: I'm going to hit the solution but I want to be able to use the correct methodology in the future)
imagine a piece of elastic string of length l stretched to a length 5l with both ends attached to particles of mass m and 3m...firstly I know that the tension on both sides of the string is equal...but would I be right in saying that although the EPE of the system is [tex] \frac {\lambda(4l)^2)}{2l}[/tex] the work done in moving the lighter particle is a quarter of this value? (the combined mass is 4m)
(the book has left it for me to figure out what happens between 2 objects free to move attached to a spring or string...all the examples and questions I had solved in that topic where such that one end of the string was always attached to a fixed object like a wall etc...)
I think I am on the verge of solving a question that has been bugging me for an hour or so but before I give myself a pat on the back can someone just have a look at a certain facet of the problem (that I will explain) and tell me if what I think is happening *is* actually happening...(ie: I'm going to hit the solution but I want to be able to use the correct methodology in the future)
imagine a piece of elastic string of length l stretched to a length 5l with both ends attached to particles of mass m and 3m...firstly I know that the tension on both sides of the string is equal...but would I be right in saying that although the EPE of the system is [tex] \frac {\lambda(4l)^2)}{2l}[/tex] the work done in moving the lighter particle is a quarter of this value? (the combined mass is 4m)
(the book has left it for me to figure out what happens between 2 objects free to move attached to a spring or string...all the examples and questions I had solved in that topic where such that one end of the string was always attached to a fixed object like a wall etc...)
Last edited: