1. The problem statement, all variables and given/known data Two blocks of equal mass m are tied to each other through a light string. One of the blocks is pulled along the line joining them with a constant force F. Find the tension in the string joining the blocks. 2. Relevant equations I tried doing this by this method. (I don't know how to draw free body diagram here. It is just two bodies connected by string) I got F+T=ma F-T=2ma Hence, F=3ma/2 I got T=F/3 But the answer given at the back is F/2 Can someone help me with this? Where am I going wrong?