- #1

physicsnobrain

- 123

- 0

## Homework Statement

A curve of radius 67 m is banked for a design speed of 95 km/h. If the coefficient of

static friction is 0.30 (wet pavement), at what range of speeds can a car safely handle the

curve?

## Homework Equations

I drew this freebody diagram.

## The Attempt at a Solution

I have no clue how to do this.

Anyways, on the range of speeds there is a minimum speed and a maximum speed.

For the minimum speed friction has act enough that the car doesn't slip off the hill? I think, again I have no ****ing clue.

For the maximum speed friction has to be enough so the car doesnt fly off the curve. I think

Anyways we probably have to solve for some angle, but I have no clue where or how this happens.

Fnet is not existant here?

anyways, All I have done is convert 95kmh to m/s which is 26.388m/s.

SO nobody knows how to solve this question? It is ranked as one of the world's hardest problems.