Translate the Given Formula to an English Phrase Using the Word

Essay

Translate the given formula to an English phrase using the word "varies".
- $\mathrm { f } = \frac { \mathrm { mv } } { \mathrm { r } } \mathrm { r }$ , where $\mathrm { f }$ is the centripetal force of an object of mass $\mathrm { m }$ moving along a circle of radius $\mathrm { r }$ at velocity $\mathrm { v }$