Chapter 18 Answer Key: Centripetal Forces
Chapter 18: Centripetal Forces – Key
18.1 Centripetal Force
1. 2670 N
2. 78 N
3. 6.8 m/s
4. 150 m
5. 5.1 m
6. 164 N
18.2 Centripetal Force & Roller Coasters
1. v >> 11 m/s
2. No – they need more speed (ac = 2.2 m/s2 < ag = 9.8 m/s2)
