1. The problem statement, all variables and given/known data Four blocks with masses 2kg, 4kg, 6kg, 3kg are held together with ropes with tensions Tx, Ty, Tz. There is a force of 20N pointing to the right and 50N to the left. Find Tz. 2. Relevant equations 3. The attempt at a solution This is like the static equilibrium problems, yet everything is moving. How do I find Tz?