In an old-fashioned amusement park ride, passengers stand inside a 3.50 m tall,
ID: 250025 • Letter: I
Question
In an old-fashioned amusement park ride, passengers stand inside a 3.50 m tall, 6.10 m diameter hollow steel cylinder with their backs against the wall. The cylinder begins to rotate so that the riders travel in a horizontal circle. When the ride is rotating fast enough, the floor on which the passengers are standing suddenly drops away! If all goes well, the passengers will “stick” to the wall and not slide down. Clothing has a coefficient of static friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70.
Which of the following forces should be included on a force diagram for a person stuck to the wall after the floor has dropped out?
Check all that apply.
Normal force (upward) Normal force (inward) Normal force (downward) Static friction (upward) Static friction (inward) Static friction (downward) Weight (inward) Weight (downward) Centripetal force (inward) Centrifugal force (outward)Explanation / Answer
The forces needed to be included are
Weight (downward)
Centripetal force (inward)
Static friction (upward)
Normal force (upward)
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