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10. Fill in the missing values in the tables that you created in your Active Physics log:
| Fast-moving roller coaster |
| |
Required
centripetal force |
Force of gravity (weight) |
Normal force
(the force of the track on the car) |
At the top
of the loop |
4000 N |
500 N |
|
At the bottom
of the loop |
6000 N |
500 N |
|
| Slow-moving roller coaster |
| |
Required
centripetal force |
Force of gravity (weight) |
Normal force
(the force of the track on the car) |
At the top
of the loop |
800 N |
500 N |
|
At the bottom
of the loop |
2800 N |
500 N |
|
11. At which section of a loop would the roller coaster passengers feel the heaviest? Why?
12. Safety requires the roller coaster to be able to make the complete loop and to keep the acceleration under 4 g. How can both of these safety features be accomplished at the same time?
13. Design a loop for your roller coaster. Calculate the speeds and accelerations at some key places in the loop.
14. Use the diagram of the Terminator Express roller coaster. Indicate at which of the following points the passengers will feel heavy, where they will feel light, and where it is uncertain.
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