1. The problem statement, all variables and given/known data A centripetal-acceleration addict rides in uniform circular motion with period T = 2.3 s and radius r = 2.80 m. At t1 his acceleration is = (6.60 m/s2) + (-2.40 m/s2). At that instant, what are the values of (a)v dot a and (b) r X a ? 2. Relevant equations i know the answers, im just really unsure of the units 3. The attempt at a solution the answers are both zero but what are the units?