Cart A is locate din front of cart B and is being pulled by a force of 20 N . The two carts have the same mass and are connected by a rope. There isnt any friction involved in this problem. Determine the tension in the rope. What exactly do I need to find here? I mean, if I assume a mass of 5 kg for each cart, then the force of gravity and normal force for each would be 49 N... the entire system would have a mass of 10 kg then. I just dont know where to go from here. Help!