What Is Centripetal Acceleration?

Thread starter I Tree
Start date Mar 9, 2022
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Acceleration Centripetal Centripetal acceleration

Mar 9, 2022

I Tree

Homework Statement: Consider a rider at the following points while riding a Ferris Wheel that is rotating counter-clockwise in a circle at a constant speed:
A.The rider is at the top of the Ferris Wheel
B.The rider is at the side of the Ferris Wheel, moving down
C.The rider is at the bottom of the Ferris Wheel
D.The rider is at the side of the Ferris Wheel, moving up

a. In which of the above scenarios is your apparent weight the lowest?
Explain why this is the case (draw a free body diagram to help with your explanation, try to be accurate with the scale)

b.In which of the above scenarios is your apparent weight the highest?
Explain why this is the case (draw a free body diagram to help with your explanation, try to be accurate with the scale)

Relevant Equations: F = mv^2/R

Unsure

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Mar 9, 2022

berkeman

Admin

Please repost your question and show your work. Thank you.

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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