- #1

maff is tuff

- 65

- 1

## Homework Statement

A car is traveling around a curve that has a radius of 500 ft. at a speed of 60mph. To what angle must the curve be banked so that there is no frictional force?

## Homework Equations

## The Attempt at a Solution

I have attached mt solution below. I don't know the right answer to this question but I gave it a shot. The answer I got doesn't seem weird or anything so it has a a chance of being right. I don't think I understand the concept completely so I don't know if the moves or assumptions I made are valid. I kind of just wrote down the equations I know that might be relevant and used those. I know circular motion has acceleration proportional to the square of the speed and the radius so I used that equation. I am just not sure if my diagrams are correct and if I'm allowed to set equal the things that I set equal. So could you guys point out what is wrong and give me some hints on how to fix it? Or if it is right can you confirm? Thanks a lot for the help :)