1. The problem statement, all variables and given/known data A 930 kg car is pulling a 320 kg trailer. Together the car and trailer move forward with an acceleration of 2.16 m/s2. Ignore any frictional force of air drag on the car and all frictional forces on the trailer. determine the net force on the car. 2. Relevant equations f = ma 3. The attempt at a solution I thought the forces that are acting on the car is a force moving car forward and a force applied by the trailer slowing the car down so the net force on the car should be 930 x 2.16 - 320 x 2.16 = 1317.6. However, it is wrong. I don't really know how to think about this problem, can anyone please provide me with some insight?