1. The problem statement, all variables and given/known data Three masses as shown below are resting on a horizontal, frictionless surface. The blocks are connected by massless, frictionless ropes. A force F of 60 N acts on the system as shown. Find the tensions in each of the other two ropes. m1= 10kg, m2 = 20 kg and m3 = 30 kg. 2. Relevant equations ΣF=ma 3. The attempt at a solution ΣF=ma 60N=(10kg+20kg+30kg)a 1=a Tension of the rope between m1 and m2 Ft=(10kg+20kg)1m/s Ft=30N The second part confuses me, wouldn't it be the weight of (m1+m2) since m3 is pulling both? Or is the first part completely irrelevant?