8. Centripetal Forces & Gravitation

A centripetal force causes circular motion because it accelerates an object in which direction?

In the context of circular motion, in which direction does the $Fc$ (centripetal force) act on an object moving in a circle?

In a roller coaster loop, at which point will the riders experience $centripetalacceleration$?

Which expression can be used to calculate centripetal acceleration for an object moving in a circle of radius $r$ with speed $v$?