Kinematics
This is the equation to find the tangential velocity of an object in circular motion.
What is v = 2 pi r / T?
What is the period of an object that was swung around 25 times in 10 seconds?
What is 0.4 seconds?
What is the tension of a 1.0 meter string that is attached to a 0.5 kg ball that was swung in a horizontal circle at a constant speed of 2 m/s?
What is 2 Newtons?