Centripetal Acceleration (continued) 1. A rope attaches a tire to an overhanging tree limb. A girl swinging on the tire has a centripetal acceleration of 3.0 m/sz. If the length of the rope is 2.1 m. what is the girl's tangential speed? 2. As a young boy swings a yo-yo parallel to the ground and above his head, the yoyo has a centripetal acceleration of 250 m/sz. If the yo -yo's string is 0.50 m long, what is the yo-yo's tangential speed? 3. A dog sits 1.5 m from the center of a merry-goround. The merry-go-round is set in motion. and the dog's tangential speed is 1.5 m/s. What is the dog's centripetal acceleration? 4. A racecar moving along a circular track has a centripetal acceleration of 15.4 m/sz. If the car has a tangential speed of 30.0 m/s, what is the distance between the car and the center of the track