Worksheet 7-1: Uniform Circular Motion - Determining Centripetal Acceleration and Forces, Summaries of Physics

Download Worksheet 7-1: Uniform Circular Motion - Determining Centripetal Acceleration and Forces and more Summaries Physics in PDF only on Docsity! Physics P Worksheet 7-1: Uniform Circular Motion Worksheet 7-1 Uniform Circular Motion Assume that the car in Figure 1 is moving at a constant speed. Figure 1 1. Construct a qualitative motion map of the car in Figure 1. 2. Is the car experiencing an acceleration? If yes, in what direction is the acceleration? Explain how you know. 3. Construct a qualitative force diagram for the car when it's at the top of the hill. Justify the relative forces in your force diagram. 4. Suppose the speed of the car is 11.1 m/s (≈ 25 mph) and the radius of curvature is 25 m. Determine the magnitude of the centripetal acceleration of the car. 5. If the mass of the car is 1200 kg, what F would be required to cause this centripetal acceleration? 6. Construct a quantitative force diagram for the car. 7. At what speed would the centripetal force equal the force of gravity? 8. Suppose the car were going faster than the speed that you calculated for question 7. Describe what would happen to the car. Assume that the car in Figure 2 is moving at a constant speed. Figure 2 9. Construct a qualitative motion map of the car in Figure 2. 10. In what direction is the car experiencing an acceleration? Explain how you know. 11. Construct a qualitative force diagram for the car when it's at the bottom of the hill. Justify the relative forces in your force diagram. 12. Suppose the speed of the car in Figure 2 is 11.1 m/s and the radius of curvature is 25 m. Determine the magnitude of the centripetal acceleration of the car. 13. If the car’s mass is 1200 kg, what F would be required to cause this centripetal acceleration? 14. Now, construct a quantitative force diagram for the car. 15. If the driver of the car weighs 540 N, what is the magnitude of the upward force that the seat exerts on the driver?