All Questions
10
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Confusion as acceleration seen from different angles disagree with each other
Heres the question:
Find the tension in the chord when the balls height above the lowest position is $\frac{1}{2}L$. Answer should be in terms of $g$ and $m$.
The solutions manual decided to orient ...
0
votes
2
answers
351
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Loop de loop free body diagram [closed]
I'm trying to understand the situation where a roller coaster goes around a loop, and we need to find the minimum speed it takes not to fall off.
What I'm not understanding is why we would set the ...
- 131
0
votes
3
answers
638
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Apparent weight due to the rotation of earth
My concern here is that, if you were to calculate the apparent weight of an object due to earth's rotation at the equator, most text books use centripetal force and it works totally fine, but when it ...
- 1
0
votes
1
answer
116
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What are all the forces a person is subjected to in a G force simulator centrifuge?
Question
What are all the forces a person is subjected to in a G force simulator?
Details
In a G force centrifuge a test pilot is exposed to high G forces, however recently I've been learning about ...
- 151
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3
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1k
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Is weight = Gravitational Force - Centripetal force?
Is weight ≠ gravitational force, for an object on the Earth’s surface? Why is this? Is it because part of the gravitational force acts as a centripetal force? Does the normal contact force not nullify ...
0
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2
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1k
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How is the normal force on a banked track larger than gravity?
The formula of the vertical force of an object that is not accelerating up or down on a banked curve is: Ncos(θ) = mg
There is also a centripetal force component which shows that the normal force is ...
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1
vote
2
answers
224
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Centripetal force and vertical motion
In regards to an object in vertical circular motion - such as a motorcycle going around a circular track, am I correct in saying that $F_\text{centripetal} \neq F_\text{net}$ ? Generally in school, we ...
- 155
0
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Does it only matter that the radial force is equal to the centripetal force, not the net force?
In the picture above, why is it only necessary that the net force in the radial direction is equal to $\frac{mv^2}{r}$ for the object to complete circular motion? What about the component of gravity ...
- 101
0
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2
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211
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Where does the component of the centripetal force in circular motion come from? [duplicate]
If a man is standing on the equator of a non-rotating planet then the normal force is equal and opposite to the weight force.
If the planet now starts rotating then there would be a net (centripetal)...
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15
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7
answers
30k
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Is gravity a force and if so what is its opposite?
For every force there is an equal force in the opposite direction on another body, correct?
So when the Suns gravity acts on Earth where is the opposite and equal force?
I also have the same ...
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