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UCM 2

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UCM 2

1. 1. Uniform Circular Motion
2. 2. Motion along a circular path at a constant speed.
3. 3. Centripetal Force
4. 4. • Any force or sum of forces which cause an object to move in a uniform circular motion.
5. 5. ⌧ (EXAMPLES!)
6. 6. • The earth’s gravity acts like a string keeping the satellite in Satellite orbit around the earth. Gravity • Fc=Fg Earth
7. 7. If it comes off the track, the train would continue in a straight line tangent to the circle. Fc=FN+Ff
8. 8. If the driver loses grip, he will slide in a straight line on a tangential path to the circle.
9. 9. The people “stick” to the wall because their centripetal force is directed tangent to the circle.
10. 10. Steps for Solving UCM Problems
11. 11. Step 1
12. 12. Step 2
13. 13. Step 3
14. 14. Step 4
15. 15. Step 5