8. Centripetal Forces & Gravitation

What is the relationship between the frequency $f$ and the period $T$ in uniform circular motion?

In uniform circular motion, how are the $f$ (frequency) and $T$ (period) of the motion related to each other?

In uniform circular motion, how are the period $T$ and frequency $f$ related to each other?

A 3kg rock spins horizontally at the end of a 2m string at 90 RPM. Calculate its centripetal acceleration.