# Non uniform circular acceleration

1. Aug 15, 2012

### hav0c

1. The problem statement, all variables and given/known data
A car is moving with a speed of 30m/s on a circular path of radius 500m. It's speed is increasing at a rate of 2m/s2. What is the acceleration of the car.

2. Relevant equations
That is my problem.

3. The attempt at a solution
Well i know equations for uniform circular motion but this is just beyond me.

2. Aug 15, 2012

### Staff: Mentor

Hint: You are given the tangential component of the acceleration. What's the radial component?

3. Aug 15, 2012

### CWatters

An object is accelerating if it's speed or direction is changing. Your car appears to be subject to two acceleration vectors. You know how to add two vectors?

Edit: Deleted a bit of this reply as otherwise too easy.

4. Aug 15, 2012

### hav0c

oh
that was surprisingly easy
i was messing up with vector addition
thanks anyways.

5. Aug 15, 2012

### CWatters

Just to play the devil....

What about gravity? Is it really three vectors :-)

6. Aug 15, 2012

### Staff: Mentor

Why do you think that would matter? (It's on a circular path.)