Suppose a 0.45kg ball is attached to a 1.00m long string. the force keeping the ball oving in a circular path is 45 N. What will the ball's centripetal acceleration and tangential velocity be? I got the first part, but I'm not sure how to get the 2nd part. So, I'm using v=r*omega. To find omega, I want to use F=mr*omega^2. Will that work?