# Circular Motion of a car on a track

1. Oct 24, 2007

[SOLVED] Circular Motion

1. The problem statement, all variables and given/known data

A 1500 kg car drives around a flat 200-m-diameter circular track at 25 m/s. What is the magnitude and direction of the net force on the car? What causes this force?

2. Relevant equations

$$F_c = \frac{mv^{2}}{r}$$

3. The attempt at a solution

So I suppose the net force is the force that maintains the circular motion. Thus,

$$F_{net} = \frac{(1500)(25)^{2}}{100} = 9375 N$$

However, how exactly would I get the direction of $F_{net}$? Is it enough to say say towards the center?

And was the cause of the net force the static frictional force of the car?