Name:____________________________

Centripetal Motion1. List the three equations for centripetal motion and list their variables

2. If an object is moving in a circle at a constant speed, is it accelerating? How do you know?

3. What direction is the velocity acting for circular motion?

4. What direction is the acceleration acting for circular motion?

5. What is the period of a yoyo spinning at 14.4m/s in a 1.3m circle?

Name:____________________________

6. A bucket of water is spun around a students head at 16m/s. It makes 13 revolutions in 5.23s before the student lets go of the bucket.

a. How large is the radius of the spinning bucket?

b. How far does the bucket go if the student let it go horizontally?

7. What is the acceleration acting on a child being swung in a circle by a parent in a helicopter ride if they make 4 spins in 1.1s with a radius of 1.8m?

8. What is the acceleration acting on a child being swung in a circle by a parent in a helicopter ride if they are moving 20km/h with a radius of 1.7m?

Name:____________________________

9. A roller coaster ride goes around a 12.5m radius curve and the rider experiences an acceleration of 15.2m/s2. How fast were they going?

10. What is the centripetal velocity of Uranus if it orbits at 2.87 x 1012m with a period of 84 years?

11. An airplane pilot experiences an acceleration of 26.9m/s2 when banking at 315m/s. What is the radius of the curve she is trying to make?

Name:____________________________

Name:____________________________