Relationship between centripetal force and velocity in circular motion

[physicsman2]

Homework Statement

What is the relationship between centripetal force and velocity
What is the relationshio between the radius of the object and the velocity

Homework Equations

Not really any


3. The Attempt at a Solution [/b
I believe a graph of centripetal force and velocity is a parabola but I can't find the relationship between them
I know nothing about the second problem

 

[rock.freak667]

Have yourself a http://en.wikipedia.org/wiki/Circular_motion"

 

[physicsman2]

I'm sorry but it doesn't help

 

[rock.freak667]

I'm sorry but it doesn't help

Are you sure?

Did you read this part?

Then consider a body of mass m, moving in a circle of radius r, with an angular velocity of ω.
The speed is v = r·ω.
The centripetal (inward) acceleration is a = r·ω² = r⁻¹·v².
The centripetal force is F = m·a = r·m·ω² = r⁻¹·m·v².

 

[physicsman2]

So would both graphs be parabolas

Thank you for helping me