# Ways to find force normal in relation to force of friction

1. Feb 5, 2004

### Pippi86

Please tell me some ways to find force normal in relation to force of friction.

2. Feb 6, 2004

### Integral

Staff Emeritus
The Normal Force is the force perpendicular toa plane.

3. Feb 6, 2004

### kishtik

Friction is because normal force. If normal force is $mg cos \alpha$, then friction force is $\mu mg cos\alpha$.