1. The problem statement, all variables and given/known data If you are spinning an object of mass 3.25 kg on a 0.8 m long chain at 20 rpm (vertical cirular motion), a) what is the tension at the top b) 43° from the top and c) at the bottom? 2. Relevant equations String tension: T = Fc - mg cosθ Tension at top: T = (mv^2/r) - mg Tension at bottom: T = mv^2/r + mg Average velocity: v = r × RPM × 0.10472 3. The attempt at a solution I've found the average velocity given the rpm, which is 1.58 m/s. I have all of the tension formulas that I need. The only problem is that I don't know how to find velocity for a given point on the circular path. Or...should I just assume that the object is being spun at a constant velocity?