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Physics: Principles with Applications | 7th Edition | ISBN: 9780321625922 | Authors: Douglas C. Giancoli
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(II) How many revolutions per minute would a 25-mdiameter

Chapter 5, Problem 11P

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QUESTION:

How many revolutions per minute would a 25-mdiameter Ferris wheel need to make for the passengers to feel “weightless” at the topmost point?

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QUESTION:

How many revolutions per minute would a 25-mdiameter Ferris wheel need to make for the passengers to feel “weightless” at the topmost point?

ANSWER:

Step 1 of 5

A Ferris wheel rotates in a vertical circle of radius . When the passengers are at the top of the vertical circle at point A,  the normal force  of the seat will act on the passengers in the upward direction and the weight  of the passengers will be in the downward direction.

Assume the downward direction as positive.

The following is a free body diagram of a ferris wheel rotating in a vertical circle.

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