#### Answer

Yes, the problem would be easier to solve if we used a horizontal axis and a vertical axis as our coordinate system.

#### Work Step by Step

Yes, the problem would be easier to solve if we used a horizontal axis and a vertical axis as our coordinate system.
The net force is directed horizontally toward the center of the circle as the car rounds the curve. The sum of the vertical forces is zero. We would just need to sum the horizontal forces, or horizontal components of forces, in order to solve this question.