Sort the following forces as relevant or not relevant to this situation. the symbols are defined as follows: normal force = n⃗ , tension force = t⃗ , horizontal force of the road on the car = f⃗ rc, horizontal force of the road on the truck = f⃗ rt, weight = w⃗ , force of the car pushing on the truck = f⃗ ct, and force of the truck pushing on the car = f⃗ tc.