We know that:
Where F is the force, m is the mass, and a is the acceleration. ( Newton's Second Law of Motion)
We also know that:

Where v is the speed of the object and r is the radius of the curvature. (Centripetal Acceleration)
Now all we have to do to get Fc is to substitute the acceleration (a) in the F = ma with the centripetal acceleration (Ac).
And you end up with:

That wasn't TOO bad was it?
