All Questions
8 questions
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How do you find the angular velocity required to keep a constant distance $r_0$ between two unequal spherical masses?
I am having trouble coming up with this solution. Here is where I am at. I defined two variables, $r_1$ and $r_2$, where the former is the distance between $m_1$ and the center of mass, and the latter ...
0
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2
answers
169
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Why doesn't a car moving on a curved path have a horizontal gravity force but it has a horizontal normal force?
So I was wondering..
When we solve questions of an object sliding on an incline, we consider the force of gravity to have two components, a horizontal and a vertical, and the normal force to have only ...
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-1
votes
1
answer
376
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For an object in a rotating cylinder, is the normal force on that object equal to the centripetal force?
There is a vertical cylinder, an object is glued to the wall (verticle) of that cylinder. The cylinder starts rotating. Is the normal force, in this scenario, the centripetal force?
I ask this ...
- 3
3
votes
1
answer
761
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Is the normal force smaller than gravitational force due to earth's rotation? [duplicate]
In physics class we learn that the normal or contact force exactly equals the force of earth's gravity pulling you to the center of the Earth and thus cancel each other out. I thought that the normal ...
-1
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2
answers
8k
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Centripetal force at the pole is different from the equator
why is the centripetal acceleration in the poles and equator if different? I know that it's related to Equatorial budge. But what I don't get it is that the centripetal force is zero at the poles. ...
- 543
0
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1
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320
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Centripetal issue when considering gravity
Forgive me if my question seems silly, but I am quite baffled. Suppose you have a satellite orbiting a horizontal swing planted into the ground and we want to find the velocity with which the ...
- 881
0
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1
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367
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Rotating sphere and circular trajectory: minimum speed
I have a sphere (mass = 3 kg), constrained to a fixed length rope, rotating (radius = 5 m) on a vertical plane.
My textbook ask me about the minimum speed in the highest point in order to keep the ...
8
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7
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36k
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Planet orbits: what's the difference between gravity and centripetal force?
My physics teacher says that centripetal force is caused by gravity. I'm not entirely sure how this works? How can force cause another in space (ie where there's nothing).
My astronomy teacher says ...
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