Final answer:
The magnitude of the centripetal force can be found using the equations Fc = mv²/r or Fc = mrω², which relate the force required to keep an object moving in a circular path to its mass, speed, and radius of curvature.
Step-by-step explanation:
The magnitude of the centripetal force can be found using either of two expressions: Fc = mv²/r or Fc = mrω², where m is the mass, v is the tangential speed, r is the radius, and ω is the angular speed. These equations relate the force required to keep an object moving in a circular path to its mass, speed, and radius of curvature.