Problem: A 1100-kg car pulls a boat on a trailer. What total force resists the motion of the car, boat, and trailer, if the car exerts a 1900-N force on the road and produces an acceleration of 0.550m/s^2? The mass of the boat is 700kg.
Part A: What is the force in the hitch between the car and the trailer if 80% of the resisting forces are experienced by the boat and trailer?
Please explain clearly with details so that I can follow.