1. What force leads to an object undergoing a circular path? 2. Kent leans back in his swivel chair and spins around with a frequency of 0.5 hz. What is Kent's period of spin? 3. Curtis' favorite disco record has a scratch 0.12 m from the center that makes the record skips 45 times each minute. What is the linear speed as it turns? Use this information to answer questions 4 and 5. John sprints around a circular track with a radius of 5m in 10 seconds. 4. What is his velocity? 5. What is his acceleration? 6. On the moon, a 0.25-kg ball attached to a string is rotating in a horizontal circle of radius 0.5 m. Assume the tension force is directed horizontally. If the ball has an angular velocity of 2 rev/s, what is the tension in the string? 7. A child whirls a ball at the end of a rope, in a uniform circular motion. Which of the following statements is NOT true