1. The problem statement, all variables and given/known data two particles of 2 kg and 3 kg are at rest . a 6 N force is exerted on the 3 kg particle at t=0. what is the speed of the center of mass at t=5s? 2. Relevant equations F=ma v=u+at 3. The attempt at a solution first i applied f=ma to the 3 kg object and got 2 as the accn. And applied v= u+ at and got10 as the velocity but the answer is 6. Can someone show me where I went wrong please?