1. The problem statement, all variables and given/known data A ball at the end of a string of length 0.75 m rotates at a constant speed in a horizontal circle. It make 3 rev/s. What is the period of the ball's motion? What is the ball's angular velocity? 2. Relevant equations w = delta theta/delta t theta = 2*pi*r/r = 2*pi rad 3. The attempt at a solution For period (in seconds): (3 rev/1s)*(2*pi rad/1 rev) = 6*pi rad/s (2*pi rad/1 rev)(1 s/6*pi rad) = 1/3 seconds I don't know where to go from here? Did I find the period in the correct manner?