Solve the all parts of given problem:
Problem: A 1270-kg car and a 2230-kg pickup truck approach a curve on the expressway that has a radius of 225 m.
Part A: At what angle should the highway engineer bank this curve so that vehicles traveling at 68.6 mi/h can safely round it regardless of the condition of their tires?
Part B: Should the heavy truck go slower than the lighter car?
Part C: As the car and truck round the curve at 68.6mi/h, find the normal force on the car to the highway surface?
Part D: As the car and truck round the curve at 68.6mi/h, find the normal force on the truck to the highway surface?
Please Help and show steps. I am trying to understand how to work this problem.