1. The problem statement, all variables and given/known data http://isites.harvard.edu/fs/docs/icb.topic725237.files/problemset3_2010.pdf (Problem 1) 2. Relevant equations f=ma, string conservation 3. The attempt at a solution I'm not really sure how to do this. I know that the t of the string on the left is equal to the two strings in the middle, and... I'm just kinda confused... Any help?