Concept explainers
How many revolutions per minute would a 25-m-diameter Ferris wheel need to make for the passengers to feel “weightless" at the topmost point?
The number ofrevolutions per minute.
Answer to Problem 11P
Solution:
Angular velocity of Ferris wheel for the passenger to feel “weightless” at the top most point should be equal to
Explanation of Solution
Given:
Diameter of Ferris wheel
Formula Used:
Centripetal acceleration
Where, v is the velocity and ris the radius.
Newton’s second law of motion
Where, m is the mass and a is the acceleration.
Angular speed,
Where, v is the velocity and ris the radius.
Calculation:
Weightless means zero normal force exerted on passenger
Conclusion:
Angular velocity of Ferris wheel is
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Physics: Principles with Applications
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